MantisBT through 2.3.0 allows arbitrary password reset and unauthenticated admin access via an empty confirm_hash value to verify.php.
http://www.openwall.com/lists/oss-security/2017/04/16/2
https://www.exploit-db.com/exploits/41890/
https://mantisbt.org/bugs/view.php?id=22690
http://www.securityfocus.com/bid/97707
http://packetstormsecurity.com/files/159219/Mantis-Bug-Tracker-2.3.0-Remote-Code-Execution.html
http://hyp3rlinx.altervista.org/advisories/MANTIS-BUG-TRACKER-PRE-AUTH-REMOTE-PASSWORD-RESET.txt
Source: Mitre, NVD
Published: 2017-04-16
Updated: 2026-06-17
Base Score: 6.5
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P
Severity: Medium
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.90856