CVE-2021-23123: Joomla!

Medium severity, CVSS 5.3. EPSS: 1.2% chance of exploitation in the next 30 days.

An issue was discovered in Joomla! 3.0.0 through 3.9.23. The lack of ACL checks in the orderPosition endpoint of com_modules leak names of unpublished and/or inaccessible modules.

Affected products

• Joomla! Joomla!: from 3.0.0, up to and including 3.9.23

Published 2021-01-12. Last modified 2026-06-17.