plugin
10 known security issues reported for the Perfmatters WordPress plugin. Most recent disclosed Jul 1, 2026.
Running Perfmatters on your site? Check whether your installed version is affected.
Scan your site freeThe Perfmatters plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.6.4 via the 's' parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires the Loca...
The Perfmatters plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.6.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses a...
The Perfmatters plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 2.6.3 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 tri...
The Perfmatters plugin for WordPress is vulnerable to arbitrary file overwrite via path traversal in all versions up to, and including, 2.5.9. This is due to the `PMCS::action_handler()` method processing the bulk action `activate`/`deactivate` handlers without any authorization check or nonce verification. The `$_GET[...
Authenticated (Subscriber+) Arbitrary File Deletion via 'delete' Parameter vulnerability
The Perfmatters plugin for WordPress is vulnerable to arbitrary file deletion via path traversal in all versions up to, and including, 2.5.9.1. This is due to the `PMCS::action_handler()` method processing the `$_GET['delete']` parameter without any sanitization, authorization check, or nonce verification. The unsaniti...
The Perfmatters plugin for WordPress is vulnerable to Stored Cross-Site Scripting via an unknown parameter in all versions up to 2.2.0 (exclusive) due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber access or above to inject arbitrary web scrip...
The Perfmatters plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via an unknown parameter in all versions up to, and including, 2.1.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute...
The Perfmatters plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.1.6. This is due to missing or incorrect nonce validation on an unknown function. This makes it possible for unauthenticated attackers to perform an unknown action granted they can trick a site admin...
The Perfmatters plugin for WordPress is vulnerable to unauthorized access, modification or loss of data due to a missing capability check on one of its functions in all versions up to, and including, 2.1.6. This makes it possible for subscriber-level attackers to invoke this function.
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