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.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15236
http://marc.info/?l=bugtraq&m=107703591314745&w=2
Source: Mitre, NVD
Published: 2004-11-23
Updated: 2026-06-16
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: High
EPSS: 0.01001