CVE-2021-23129: Joomla!

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

An issue was discovered in Joomla! 2.5.0 through 3.9.24. Missing filtering of messages showed to users that could lead to xss issues.

Affected products

• Joomla! Joomla!: from 2.5.0, before 3.9.25 (fixed in 3.9.25)

Published 2021-03-04. Last modified 2026-06-17.