CVE-2025-9890

HIGH 8.8

Theme Editor <= 3.0 - Cross-Site Request Forgery to Remote Code Execution

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

The Theme Editor plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.0. This is due to missing or incorrect nonce validation on the 'theme_editor_theme' page. This makes it possible for unauthenticated attackers to achieve remote code execution via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CWE	CWE-352
Vendor	mndpsingh287
Product	theme editor
Published	Oct 18, 2025
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

mndpsingh287 / Theme Editor

0 ≤ 3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/77189684-b794-41a0-8fc0-3320032c2f69?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/theme-editor/trunk/app/controller/theme_controller.php#L87 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3379404%40theme-editor&new=3379404%40theme-editor&sfp_email=&sfph_mail=

Credits

Jonas Benjamin Friedli