CVE-2004-2054: Phpbb Group Phpbb

Medium severity, CVSS 5.0. EPSS: 2.2% chance of exploitation in the next 30 days.

CRLF injection vulnerability in PhpBB 2.0.4 and 2.0.9 allows remote attackers to perform HTTP Response Splitting attacks to modify expected HTML content from the server via (1) the mode parameter to privmsg.php or (2) the redirect parameter to login.php.

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 2004-12-31. Last modified 2026-06-16.