CVE-2026-30849 — Vulnerability in mantisbt/mantisbt — CVE Details

CRITICAL

MantisBT is vulnerable to authentication bypass through the SOAP API on MySQL

Published March 23, 2026Updated March 25, 2026Source: osv

Summary

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](https://mantisbt.org/docs/master/en-US/Admin_Guide/html-desktop/#admin.config.api.disable) 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.

Advisory Timeline

First published March 23, 2026 (203 days ago).
Last revised March 25, 2026 — 2 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer

Update mantisbt/mantisbt to 2.28.1 or later

composer require "mantisbt/mantisbt:^2.28.1"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: packagist (1).

Package	Ecosystem	Affected	Fixed In
mantisbt/mantisbt	packagist	2.10.0, 2.10.1, 2.11.0, 2.11.1 (+71 more)	2.28.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-305
View on MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.4 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

—

Confidentiality

—

Integrity

—

Availability

—

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

References

Frequently Asked Questions

What is CVE-2026-30849?: MantisBT is vulnerable to authentication bypass through the SOAP API on MySQL This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.4/10).
How do I check if my project is affected by CVE-2026-30849?: CVE-2026-30849 affects mantisbt/mantisbt. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-30849 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

9.4

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-phrq-pc6r-f6gh

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