Postie <= 1.9.73 - Authenticated (Contributor+) Stored Cross-Site Scripting
Affected versions: *-1.9.73
Vulnerability type: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected software, patched versions and attribution
The Postie plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.9.73 due to insufficient input sanitization and output escaping. 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.
Postie
Affected versions: *-1.9.73
Patched versions: 1.9.74
Researcher credit: Athiwat Tiprasaharn (Jitlada)
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- Published
- December 31, 2025
- CVSS
- 6.4