CVE-2011-4321: Joomla!

Medium severity, CVSS 5.0. EPSS: 0.9% chance of exploitation in the next 30 days.

The password reset functionality in Joomla! 1.5.x through 1.5.24 uses weak random numbers, which makes it easier for remote attackers to change the passwords of arbitrary users via unspecified vectors.

Affected products

• Joomla! Joomla!: version 1.5.0 only; version 1.5.1 only; version 1.5.2 only; version 1.5.3 only; version 1.5.4 only; version 1.5.5 only; …

Published 2011-11-23. Last modified 2026-06-16.