Joomla! Improper ACL Checks in Access Level Endpoints (4.0.0-5.4.8, 6.0.0-6.1.3)
CVE-2026-90913 Published on September 29, 2026
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
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.
Vulnerability Analysis
CVE-2026-90913 can be exploited with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2026-90913 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2026-90913
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Affected Versions
Joomla! Project Joomla! CMS:- Version 4.0.0-5.4.8 is affected.
- Version 6.0.0-6.1.3 is affected.