Vulnerability in Joomla! Project Joomla! CMS

[ Description ]Official description

Joomla! Core - [20260903] - Core - Improper ACL checks for access level webservice endpoints in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - An improper access check allows unauthorized users to perform mutation actions in access level endpoints.

[ Fixes ]Fixes and patches

• Patch on developer.joomla.orgVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ Advisories ]Government CERT advisories

• BSI CERT-Bund29 Sep 2026WID-SEC-2026-3636

  Joomla: Multiple vulnerabilities Translated from German

  CVE-2026-92227CVE-2026-90914CVE-2026-90913+13 more CVEs

[ References ]References

• developer.joomla.org/security-centre/1083-20260903-core-improper-acl-checks-for-user-le…PatchVendor Advisory
• www.joomla.orgProduct