CVE-2025-14469

medium

Description

The Theme Editor plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.1. This is due to missing nonce validation on the ms_update AJAX action. This makes it possible for unauthenticated attackers to modify child theme CSS styles via a forged request granted they can trick an administrator into performing an action such as clicking on a link.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/1dd4e39a-9b2f-4728-b026-2dee60257c46?source=cve

https://wordpress.org/plugins/theme-editor/#developers

https://plugins.trac.wordpress.org/browser/theme-editor/trunk/includes/classes/ms_theme_editor_controller.php#L60

https://plugins.trac.wordpress.org/browser/theme-editor/trunk/includes/classes/ms_theme_editor_controller.php#L13

Details

Source: Mitre, NVD

Published: 2026-08-01

Updated: 2026-08-01

Risk Information

CVSS v2

Base Score: 5

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

Severity: Medium

CVSS v3

Base Score: 4.3

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

Severity: Medium