CVE-2025-9890: Theme Editor · Cross-Site Request Forgery (CSRF)
Affects Theme EditorSource CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 08:30 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 34% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 18 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| mndpsingh287 Theme Editor | Affected
| Fixed in– |
AI-suggested
Until a patch is available, administrators should avoid clicking on untrusted links and consider disabling or restricting access to the Theme Editor plugin. Monitoring for suspicious activity related to theme editing is advised.
Description
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.
References
- wordfence.com/threat-intel/vulnerabilities/id/77189684-b794-41a0-8fc0-3320032c2f69?source=cve (opens in a new tab)
- plugins.trac.wordpress.org/browser/theme-editor/trunk/app/controller/theme_controller.php (opens in a new tab)
- plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3379404%40theme-editor&new=3379404%40theme-editor&sfp_email=&sfph_mail= (opens in a new tab)