GitHub Advisoryadvisory · Packagist

GHSA-phrq-pc6r-f6gh MantisBT is vulnerable to authentication bypass through the SOAP API on MySQL

CRITICAL Published 2026-03-23 Modified 2026-03-25 Official page ↗
Aliases
CVE-2026-30849
Ecosystem
Packagist
Packages
mantisbt/mantisbt
Severity
Critical
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Weaknesses
CWE-305
Reviewed
2026-03-23

Affected packages

• Packagist mantisbt/mantisbt: < 2.28.1 → fixed in 2.28.1

Description

Mantis Bug Tracker instances running on MySQL and compatible databases are affected by an authentication bypass vulnerability in the SOAP API, as a result of improper type checking on the password parameter. Other database backends are not affected, as they do not perform implicit type conversion from string to integer. Impact Using a crafted SOAP envelope, an attacker knowing the victim's username is able to login to the SOAP API with their account without knowledge of the actual password, and execute any API function they have access to. Patches • b349e5c890eeda9bd82e7c7e14479853f8a30d9f Workarounds • Disabling the SOAP API significantly reduces the risk, but still allows the attacker to retrieve user account information including email address and real name. Resources • https://mantisbt.org/bugs/view.php?id=36902 Credits MantisBT thanks Alexander Philiotis of SynerComm for discovering and responsibly reporting the issue.

Related

Alias · CVE (1)

  • CVE-2026-30849 Mantis Bug Tracker (MantisBT) is an open source issue tracker. vulnerability

Weakness · CWE (1)

  • CWE-305 Authentication Bypass by Primary Weakness weakness

References