CVE-2026-90917

Joomla! Core - [20260907] - Core - Improper ACL checks in outputs for tagged items in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - An improper access check allows unauthorized users to view content items from inaccessible categories.

  • Published Sep 29, 2026
  • CVSS 6.9 medium
  • 0.3% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-90917 at the National Vulnerability Database