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10 known security issues reported for the Cornerstone WordPress plugin. Most recent disclosed Jun 25, 2026.
Running Cornerstone on your site? Check whether your installed version is affected.
Scan your site freeThe Cornerstone plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to 7.8.9. This makes it possible for authenticated attackers, with subscriber-level access and above, to perform an unauthorized action.
The Cornerstone plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to 7.8.8. This makes it possible for authenticated attackers, with subscriber-level access and above, to perform an unauthorized action.
The Cornerstone plugin for WordPress is vulnerable to SQL Injection in versions up to 7.8.8 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append addi...
The Cornerstone plugin for WordPress is vulnerable to Remote Code Execution in all versions up to 7.8.8 (exclusive). This makes it possible for authenticated attackers, with Subscriber-level access and above, to execute code on the server.
[en] Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in THEMECO Cornerstone cornerstone allows Stored XSS.This issue affects Cornerstone: from n/a through <= 7.7.3.
The Cornerstone plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 7.7.3 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...
The Cornerstone plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in all versions up to, and including, 0.8.0 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...
[en] Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Archetyped Cornerstone allows Reflected XSS.This issue affects Cornerstone: from n/a through 0.8.0.
The Cornerstone plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in all versions up to, and including, 0.8.0 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...
[en] Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Archetyped Cornerstone allows Reflected XSS.This issue affects Cornerstone: from n/a through 0.8.0.
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