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WordPress security records

WordPress Vulnerability Listing

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

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4 vulnerability records

MediumCVE-2026-39571

Instantio <= 3.3.30 - Unauthenticated Information Exposure

Instantio — Side Cart & One-Page Checkout for WooCommerce: Currently marked unpatched

Affected versions: *-3.3.30

Vulnerability type: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected software, patched versions and attribution

The Instantio — Side Cart & One-Page Checkout for WooCommerce plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.3.30. This makes it possible for unauthenticated attackers to extract sensitive user or configuration data.

Instantio — Side Cart & One-Page Checkout for WooCommerce

Affected versions: *-3.3.30

Patched versions: 3.3.31

Researcher credit: Que Thanh Tuan

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 25, 2026
CVSS
5.3
HighCVE-2025-47550

Instantio <= 3.3.16 - Authenticated (Admin+) Arbitrary File Upload

Instantio — Side Cart & One-Page Checkout for WooCommerce: Currently marked unpatched

Affected versions: *-3.3.16

Vulnerability type: CWE-434 Unrestricted Upload of File with Dangerous Type

Affected software, patched versions and attribution

The Instantio – WooCommerce Quick Checkout | Direct Checkout, Floating Cart, Side Cart & Popup Cart plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 3.3.16. This makes it possible for authenticated attackers, with Administrator-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

Instantio — Side Cart & One-Page Checkout for WooCommerce

Affected versions: *-3.3.16

Patched versions: 3.3.17

Researcher credit: Ryan Kozak

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 7, 2025
CVSS
7.2
MediumCVE-2025-24581

Instantio <= 3.3.7 - Missing Authorization to Unauthenticated Settings Update

Instantio — Side Cart & One-Page Checkout for WooCommerce: Currently marked unpatched

Affected versions: *-3.3.7

Vulnerability type: CWE-862 Missing Authorization

Affected software, patched versions and attribution

The Instantio – WooCommerce Quick Checkout | Direct Checkout, Floating Cart, Side Cart & Popup Cart plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 3.3.7. This makes it possible for unauthenticated attackers to update plugin settings.

Instantio — Side Cart & One-Page Checkout for WooCommerce

Affected versions: *-3.3.7

Patched versions: 3.3.8

Researcher credit: Kévin Mosbahi (Mika)

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 18, 2024
CVSS
5.3
High

Instantio – WooCommerce Quick Checkout | Instant Checkout, Side Cart & Popup Cart <= 1.2.5 - Cross Site Request Forgery

Instantio — Side Cart & One-Page Checkout for WooCommerce: Currently marked unpatched

Affected versions: *-1.2.5

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

Affected software, patched versions and attribution

The Instantio – WooCommerce Quick Checkout | Instant Checkout, Side Cart & Popup Cart plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.2.5. This is due to missing or incorrect nonce validation on the instantio_lite_ajax_quickview_variable_products function. This makes it possible for unauthenticated attackers to add products to a cart via a forged request granted they can trick a site user into performing an action such as clicking on a link.

Instantio — Side Cart & One-Page Checkout for WooCommerce

Affected versions: *-1.2.5

Patched versions: 1.2.6

Researcher credit: WPScanTeam

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
June 30, 2021
CVSS
8.8

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

Data Source, Attribution and Methodology

Production Feed records are aggregated without claiming discovery, exploitation or infection. Applicable source notices remain attached to individual records. Read the methodology.