e107 CMS CVE-2025-11941

No vendor-released patch has been identified at time of analysis. The vendor was reportedly contacted early but has not responded or provided a fix version. Immediate mitigation options include: (1) Restrict access to /e107_admin/image.php to trusted IP ranges or network segments using web server configuration (Apache .htaccess or nginx location blocks), ensuring the Avatar Handler is not exposed to untrusted users; (2) Disable or remove the Avatar Handler component if not essential to operations, reducing attack surface; (3) Implement strict input validation and filtering on the multiaction[] parameter at the web application firewall (WAF) level to block directory traversal patterns (../, %2e%2e, etc.); (4) Require multi-factor authentication for all e107 administrative and user accounts to reduce credential compromise risk. Until a patch is available, organizations using e107 should evaluate migration to alternative CMS platforms with active security support or implement restrictive network segmentation around e107 instances.