The Nginx Cache Purge Preload plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.1.1 via the 'nppp_preload_cache_on_update' function. This is due to insufficient sanitization of the $_SERVER['HTTP_REFERERER'] parameter passed from the 'nppp_handle_fastcgi_cache_actions_admin_bar' function. This makes it possible for authenticated attackers, with Administrator-level access and above, to execute code on the server.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Fastcgi Cache Purge And Preload Nginx Plugin | — | Update fastcgi-cache-purge-and-preload-nginx plugin to version 2.1.3, or a newer patched version | Jul 28, 2025 | Jul 21, 2025 |
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