CVE-2020-15699: Joomla!

Medium severity, CVSS 5.3. EPSS: 0.6% chance of exploitation in the next 30 days.

An issue was discovered in Joomla! through 3.9.19. Missing validation checks on the usergroups table object can result in a broken site configuration.

Affected products

• Joomla! Joomla!: from 2.5.0, up to and including 3.9.19

Published 2020-07-15. Last modified 2026-06-17.