CVE-2025-6213

high

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.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/bbe8c101-5e0a-4ba7-8ff7-4c8ed01e9ef5?source=cve

https://wordpress.org/plugins/fastcgi-cache-purge-and-preload-nginx/

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://github.com/psaux-it/nginx-fastcgi-cache-purge-and-preload

Details

Source: Mitre, NVD

Published: 2025-07-22

Updated: 2025-08-01

Risk Information

CVSS v2

Base Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.2

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00226