CVE-2008-4102: Joomla! Joomla

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

Joomla! 1.5 before 1.5.7 initializes PHP's PRNG with a weak seed, which makes it easier for attackers to guess the pseudo-random values produced by PHP's mt_rand function, as demonstrated by guessing password reset tokens, a different vulnerability than CVE-2008-3681.

Affected products

• Joomla! Joomla: version 1.5 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 2008-09-18. Last modified 2026-06-16.