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WordPress Vulnerability Listing

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Dataset last synchronized: 2026-08-03 00:31:25 UTC

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20 vulnerability records

HighCVE-2026-6854

My Calendar <= 3.7.8 - Unauthenticated SQL Injection via 'mc_auth' and 'mc_host' Parameters

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.7.8

Vulnerability type: CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Affected software, patched versions and attribution

The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to time-based blind SQL Injection via the 'mc_auth' parameter in all versions up to, and including, 3.7.8 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

My Calendar – Accessible Event Manager

Affected versions: *-3.7.8

Patched versions: 3.7.9

Researcher credit: Leonid Semenenko (lsemenenko)

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
July 7, 2026
CVSS
7.5
MediumCVE-2026-11896

My Calendar <= 3.7.14 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Disclosure via 'vcal' Parameter

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.7.14

Vulnerability type: CWE-639 Authorization Bypass Through User-Controlled Key

Affected software, patched versions and attribution

The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.7.14 via the 'vcal' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to enumerate occurrence IDs and access the full iCalendar export of non-public, draft, trashed, and personal calendar events, disclosing sensitive event metadata including titles, descriptions, dates, locations, organizer and host details, permalinks, and related calendar metadata.

My Calendar – Accessible Event Manager

Affected versions: *-3.7.14

Patched versions: 3.7.15

Researcher credit: Athiwat Tiprasaharn (Jitlada), Tharadol Suksamran (d3kc4rt_1)

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
July 1, 2026
CVSS
5.3
MediumCVE-2026-7525

My Calendar <= 3.7.9 - Authenticated (Custom+) Missing Authorization to Unauthorized Event Publication via 'event_approved' Parameter

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.7.9

Vulnerability type: CWE-862 Missing Authorization

Affected software, patched versions and attribution

The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.7.9. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with custom-level access and above, to bypass the moderation and approval workflow by tampering with the POST body to publish events or set other unauthorized statuses such as cancelled or private, in ways their role does not permit. While the UI correctly restricts low-privilege users to a draft-only submit button, this restriction is enforced only client-side, making it trivially bypassable by directly manipulating the POST request.

My Calendar – Accessible Event Manager

Affected versions: *-3.7.9

Patched versions: 3.7.10

Researcher credit: type5afe

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
May 13, 2026
CVSS
4.3
MediumCVE-2026-40308

My Calendar < 3.7.7 - Unauthenticated Denial of Service

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: [*, 3.7.7)

Vulnerability type: CWE-639 Authorization Bypass Through User-Controlled Key

Affected software, patched versions and attribution

The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to Denial of Service in all versions up to 3.7.7 (exclusive). This makes it possible for unauthenticated attackers to trigger a fatal error.

My Calendar – Accessible Event Manager

Affected versions: [*, 3.7.7)

Patched versions: 3.7.7

Researcher credit: minhi1

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
April 16, 2026
CVSS
5.3
MediumCVE-2026-2355

My Calendar – Accessible Event Manager <= 3.7.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.7.3

Vulnerability type: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected software, patched versions and attribution

The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `template` attribute of the `[my_calendar_upcoming]` shortcode in all versions up to, and including, 3.7.3. This is due to the use of `stripcslashes()` on user-supplied shortcode attribute values in the `mc_draw_template()` function, which decodes C-style hex escape sequences (e.g., `\x3c` to `<`) at render time, bypassing WordPress's `wp_kses_post()` content sanitization that runs at save time. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

My Calendar – Accessible Event Manager

Affected versions: *-3.7.3

Patched versions: 3.7.4

Researcher credit: Muhammad Yudha - DJ

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
March 3, 2026
CVSS
6.4
MediumCVE-2025-67592

My Calendar <= 3.6.16 - Missing Authorization

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.6.16

Vulnerability type: CWE-862 Missing Authorization

Affected software, patched versions and attribution

The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 3.6.16. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform an unauthorized action.

My Calendar – Accessible Event Manager

Affected versions: *-3.6.16

Patched versions: 3.6.17

Researcher credit: Doan Dinh Van (d52v)

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
December 15, 2025
CVSS
4.3
MediumCVE-2024-1274

My Calendar <= 3.4.23 - Authenticated (Admin+) Stored Cross-Site Scripting via Events

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.4.23

Vulnerability type: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected software, patched versions and attribution

The My Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via events in all versions up to, and including, 3.4.23 due to insufficient input sanitization and output escaping on event dates. This makes it possible for authenticated attackers with, admin-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

My Calendar – Accessible Event Manager

Affected versions: *-3.4.23

Patched versions: 3.4.24

Researcher credit: cyc707

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
February 11, 2024
CVSS
4.4
MediumCVE-2024-25916

My Calendar <= 3.4.23 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.4.23

Vulnerability type: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected software, patched versions and attribution

The My Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in all versions up to, and including, 3.4.23 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with, contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

My Calendar – Accessible Event Manager

Affected versions: *-3.4.23

Patched versions: 3.4.24

Researcher credit: Steven Julian

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
February 11, 2024
CVSS
6.4
CriticalCVE-2023-6360

My Calendar <= 3.4.21 - Unauthenticated SQL Injection

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.4.21

Vulnerability type: CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Affected software, patched versions and attribution

The My Calendar plugin for WordPress is vulnerable to [blind|generic|time-based] SQL Injection via the 'from' and 'to' parameters of the '/my-calendar/v1/events' rest route in all versions up to, and including, 3.4.21 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

My Calendar – Accessible Event Manager

Affected versions: *-3.4.21

Patched versions: 3.4.22

Researcher credit: Tenable

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
November 26, 2023
CVSS
9.8
HighCVE-2023-23813

My Calendar <= 3.4.3 - Cross-Site Request Forgery

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.4.3

Vulnerability type: CWE-352 Cross-Site Request Forgery (CSRF)

Affected software, patched versions and attribution

The My Calendar plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.4.3. This is due to missing or incorrect nonce validation on several functions. This makes it possible for unauthenticated attackers to invoke those functions, via forged request granted they can trick a site administrator into performing an action such as clicking on a link.

My Calendar – Accessible Event Manager

Affected versions: *-3.4.3

Patched versions: 3.4.4

Researcher credit: thiennv

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
January 20, 2023
CVSS
8.8
HighCVE-2022-47427

My Calendar <= 3.3.24.1 - Cross-Site Request Forgery

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.3.24.1

Vulnerability type: CWE-352 Cross-Site Request Forgery (CSRF)

Affected software, patched versions and attribution

The My Calendar plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.3.24.1. This is due to missing or incorrect nonce validation on several functions handling the deletion of events and locations. This makes it possible for unauthenticated attackers to remove events or locations, via forged request granted they can trick a site administrator into performing an action such as clicking on a link.

My Calendar – Accessible Event Manager

Affected versions: *-3.3.24.1

Patched versions: 3.3.25

Researcher credit: rezaduty

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
January 3, 2023
CVSS
7.1
MediumCVE-2022-36371

My Calendar <= 3.3.16 - Open Redirect

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.3.16

Vulnerability type: CWE-601 URL Redirection to Untrusted Site ('Open Redirect')

Affected software, patched versions and attribution

The My Calendar plugin for WordPress is vulnerable to Open Redirection in versions up to, and including, 3.3.16. This makes it possible for unauthenticated attackers to create links that look to be part of an affected site, but will redirect to the attacker's target. This vulnerability can be utilized for malicious redirection and can also be used for phishing.

My Calendar – Accessible Event Manager

Affected versions: *-3.3.16

Patched versions: 3.3.17

Researcher credit: Dan Kegel

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
August 2, 2022
CVSS
4.7
Medium

My Calendar <= 3.3.16 - Administrator+ Stored Cross-Site Scripting

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.3.16

Vulnerability type: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected software, patched versions and attribution

The My Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via various parameters including the ‘street’ parameter in versions up to, and including, 3.3.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

My Calendar – Accessible Event Manager

Affected versions: *-3.3.16

Patched versions: 3.3.17

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
July 18, 2022
CVSS
5.5
MediumCVE-2021-24927

My Calendar <= 3.2.17 - Subscriber+ Reflected Cross-Site Scripting

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.2.17

Vulnerability type: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected software, patched versions and attribution

The My Calendar WordPress plugin before 3.2.18 does not sanitise and escape the callback parameter of the mc_post_lookup AJAX action (available to any authenticated user) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue

My Calendar – Accessible Event Manager

Affected versions: *-3.2.17

Patched versions: 3.2.18

Researcher credit: Krzysztof Zając

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
November 1, 2021
CVSS
5.4
MediumCVE-2019-15713

My Calendar <= 3.1.9 - Unauthenticated Cross-Site Scripting

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-3.1.9

Vulnerability type: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected software, patched versions and attribution

The my-calendar plugin before 3.1.10 for WordPress has XSS.

My Calendar – Accessible Event Manager

Affected versions: *-3.1.9

Patched versions: 3.1.10

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
April 30, 2019
CVSS
6.1
Medium

My Calendar <= 2.5.16 - Authenticated Stored Cross-Site Scripting

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: [*, 2.5.17)

Vulnerability type: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected software, patched versions and attribution

The My Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘event_time_label’ parameter in versions up to, and including, 2.6.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

My Calendar – Accessible Event Manager

Affected versions: [*, 2.5.17)

Patched versions: 2.5.17

Researcher credit: Luigi Gubello

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
April 4, 2018
CVSS
6.4
Medium

My Calendar < 2.3.30 - Reflected Cross-Site Scripting

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: [*, 2.3.30)

Vulnerability type: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected software, patched versions and attribution

The My Calendar plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘value’ parameter in versions before 2.3.30 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

My Calendar – Accessible Event Manager

Affected versions: [*, 2.3.30)

Patched versions: 2.3.30

Researcher credit: Tim Coen

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
May 15, 2015
CVSS
6.1
Critical

My Calendar <= 2.3.29 - Path Traversal to Remote Code Execution

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: *-2.3.29

Vulnerability type: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected software, patched versions and attribution

The My Calendar plugin for WordPress is vulnerable to Path Traversal in versions up to, and including, 2.3.29 via the 'edit_my_calendar_styles' function in the 'my-calendar-styles.php' file. This allows unauthenticated attackers to overwrite the contents of all files the vulnerable service has access to, including adding executable PHP to PHP files.

My Calendar – Accessible Event Manager

Affected versions: *-2.3.29

Patched versions: 2.3.30

Researcher credit: Joost de Valk

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
May 15, 2015
CVSS
9.8
Medium

My Calendar < 2.3.10 - Reflected Cross-Site Scripting

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: [*, 2.3.10)

Vulnerability type: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected software, patched versions and attribution

The My Calendar plugin for WordPress is vulnerable to Cross-Site Scripting in versions before 2.3.10 due to insufficient input sanitization and output escaping. This makes it possible for attackers to inject arbitrary web scripts that execute in a victim's browser.

My Calendar – Accessible Event Manager

Affected versions: [*, 2.3.10)

Patched versions: 2.3.10

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
April 20, 2015
CVSS
6.1
MediumCVE-2012-6527

My Calendar < 1.10.5 - Cross-Site Scripting

My Calendar – Accessible Event Manager: Currently marked unpatched

Affected versions: [*, 1.10.5)

Vulnerability type: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected software, patched versions and attribution

Cross-site scripting (XSS) vulnerability in the My Calendar plugin before 1.10.5 for WordPress allows remote attackers to inject arbitrary web script or HTML via the PATH_INFO.

My Calendar – Accessible Event Manager

Affected versions: [*, 1.10.5)

Patched versions: 1.10.5

Researcher credit: Dean Batha

Applicable copyright and licence notices

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

Licence reference

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Licence reference

Original Wordfence record
Published
January 18, 2012
CVSS
6.1

Vulnerability data: Wordfence Intelligence. Analysis and practical guidance: 3Zero Digital.

Data Source, Attribution and Methodology

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