plugin
2 known security issues reported for the Cosign Sso WordPress plugin. Most recent disclosed Dec 5, 2025.
Running Cosign Sso on your site? Check whether your installed version is affected.
Scan your site free[en] The CoSign Single Signon plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `$_SERVER['PHP_SELF']` parameter in all versions up to, and including, 0.3.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web...
The CoSign Single Signon plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `$_SERVER['PHP_SELF']` parameter in all versions up to, and including, 0.3.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scri...
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