CVE-2026-90913

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.

  • Published Sep 29, 2026
  • CVSS 7.0 high
  • 0.3% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-90913 at the National Vulnerability Database