vulnerability

WordPress Plugin: custom-css: CVE-2025-39601: Cross-Site Request Forgery (CSRF)

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
Apr 16, 2025
Added
May 15, 2025
Modified
May 5, 2026

Description

The Custom CSS, JS and PHP plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.4.1. This is due to missing or incorrect nonce validation on the save_options() function. This makes it possible for unauthenticated attackers to inject arbitrary code via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Solution

custom-css-plugin-cve-2025-39601
Title
Rapid7 Labs

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