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
Published Sep 29, 2026
·Updated
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.
Affected Software
3 affected components
Joomla joomla>=4.0.0<=5.4.8, >=6.0.0<=6.1.3
Joomla Joomla\!>=4.0.0<5.4.8
Joomla Joomla\!>=6.0.0<6.1.3
Remediation
Event History
Sep 29, 2026
CVE Published
via MITRE·04:36 PM
Data Sourced
via MITRE·04:36 PM
DescriptionWeakness
Data Sourced
via NVD·05:17 PM
RemedyDescriptionSeverityWeaknessAffected Software