CVE-2006-0632: Phpbb Group Phpbb

Medium severity, CVSS 6.4. EPSS: 2.6% chance of exploitation in the next 30 days.

The gen_rand_string function in phpBB 2.0.19 uses insufficiently random data (small value space) to create the activation key ("validation ID") that is sent by e-mail when establishing a password, which makes it easier for remote attackers to obtain the key and modify passwords for existing accounts or create new accounts.

Affected products

• Phpbb Group Phpbb: version 2.0.0 only; version 2.0.1 only; version 2.0.2 only; version 2.0.3 only; version 2.0.4 only; version 2.0.5 only; …

Published 2006-02-10. Last modified 2026-06-16.