CVE-2004-0294: Yabbforumsoftware Yet Another Bulletin Board

Medium severity, CVSS 5.0. EPSS: 2.7% chance of exploitation in the next 30 days.

YaBB 1 SP 1.3.1 displays different error messages when a user exists or not, which makes it easier for remote attackers to identify valid users and conduct a brute force password guessing attack.

Affected products

Published 2004-11-23. Last modified 2026-06-16.