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7.5

MantisBT SOAP API lets attackers log in without password

CVE-2012-1123 · published 14 years ago
Summary

The SOAP interface in MantisBT versions before 1.2.9 does not correctly check passwords, so a remote user can send a login request with an empty password and gain access. This could allow an unauthorized person to view or change issue data. Upgrade MantisBT to version 1.2.9 or later, or apply the recommended patch, to enforce proper authentication.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
mantisbt mantisbt <= 1.2.8
0.18.0
0.19.0
0.19.1
0.19.2
0.19.3
0.19.4
0.19.5
1.0.0
1.0.1
1.0.2
1.0.3
24 more version ranges
cpe:2.3:a:mantisbt:mantisbt:*:*:*:*:*:*:*:*
Original advisory text
The mci_check_login function in api/soap/mc_api.php in the SOAP API in MantisBT before 1.2.9 allows remote attackers to bypass authentication via a null password.
The mci_check_login function in api/soap/mc_api.php in the SOAP API in MantisBT before 1.2.9 allows remote attackers to bypass authentication via a null password.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
7.5 High
Exploitation
4% chance of attack within 30 days
Type
CWE-287Improper Authentication
Timeline
Published29 Jun 2012
Updated23 Oct 2026
First seen29 Sep 2026
Sources
CVE-2012-1123 · NVD
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