Junglewise Threat Intelligence

CVE-2025-14469: mndpsingh287 Theme Editor CSRF in ms_update AJAX action

CVE-2025-14469 · Severity: medium · CVSS 4.3 · Published 2026-08-01

Executive brief

The Theme Editor plugin for WordPress, which allows site owners to modify theme and plugin files directly from the dashboard, is vulnerable to a security flaw. An attacker could trick a site administrator into clicking a malicious link, allowing the attacker to silently modify the website's child theme CSS styles. This could lead to unauthorized changes to the website's appearance or layout without the administrator's knowledge.

Technical details

The Theme Editor plugin for WordPress is vulnerable to Cross-Site Request Forgery (CSRF) in all versions up to, and including, 3.1. The vulnerability exists due to missing nonce validation on the 'ms_update' AJAX action within the plugin's controller. An unauthenticated attacker can exploit this by crafting a malicious request and tricking a logged-in administrator into executing it (e.g., via social engineering or a malicious link). Successful exploitation allows the attacker to modify child theme CSS styles. The issue is addressed in version 3.2.

Affected products

  • mndpsingh287 Theme Editor up to, and including, 3.1

Timeline

  • 2025-10-15: patched: Version 3.1 released with security fixes (partial)
  • 2026-03-19: patched: Version 3.2 released with security fixes
  • 2026-08-01: disclosed

References

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