CVE-2021-26037: Joomla!

Medium severity, CVSS 5.3. EPSS: 0.9% chance of exploitation in the next 30 days.

An issue was discovered in Joomla! 2.5.0 through 3.9.27. CMS functions did not properly termine existing user sessions when a user's password was changed or the user was blocked.

Affected products

• Joomla! Joomla!: from 2.5.0, up to and including 3.9.27

Published 2021-07-07. Last modified 2026-06-17.