WordPress security changelog
CRITICAL CVE-2026-39640 Deferred

Theme Editor: Code execution

Theme Editor is affected by code execution. Exposure depends on how the affected operation is made reachable by the site. Successful exploitation can run attacker-controlled code in the WordPress hosting account. The published affected range is <= 3.2.

CVE / CNA score 9.6 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Theme Editor
Plugin slug
theme-editor
Affected
<= 3.2
Safe version
> 3.2
Published
Apr 08, 2026
Weakness
CWE-352 — Cross-Site Request Forgery (CSRF)

This CVE was published Apr 08, 2026 and is one of 5 known issues for this plugin.

Update, patch or deactivate.

Update Theme Editor to a release after 3.2, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

Cross-Site Request Forgery (CSRF) vulnerability in mndpsingh287 Theme Editor theme-editor allows Code Injection.This issue affects Theme Editor: from n/a through <= 3.2.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Primary and upstream sources