CVE-2024-27187: Joomla!

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper Access Controls allows backend users to overwrite their username when disallowed.

Affected products

• Joomla! Joomla!: from 4.0.0, before 4.4.7 (fixed in 4.4.7); from 5.0.0, before 5.1.3 (fixed in 5.1.3)

Published 2024-08-20. Last modified 2026-06-17.