Description
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.
Metrics
CVSS 3.1 7.2/10
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| psauxit | Nginx Cache Purge Preload | <= 2.1.1 |
References
- https://github.com/psaux-it/nginx-fastcgi-cache-purge-and-preload
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3332176%40fastcgi-cache-purge-and-preload-nginx&new=3332176%40fastcgi-cache-purge-and-preload-nginx&sfp_email=&sfph_mail=#file15
- https://wordpress.org/plugins/fastcgi-cache-purge-and-preload-nginx/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/bbe8c101-5e0a-4ba7-8ff7-4c8ed01e9ef5?source=cve
Timeline
- Published
- Jul 22, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Deferred