GHSA-phrq-pc6r-f6gh CVE-2026-30849
MantisBT is vulnerable to authentication bypass through the SOAP API on MySQL
- Severity
- 0.0 / 10
- Critical · CVSS 4.0
- Exploit chance (EPSS)
- 1.76%
- Chance of exploitation in the next 30 days. Higher than 78.00% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-305 Authentication Bypass by Primary Weakness
- Fix
2.28.1- Upgrade mantisbt/mantisbt to this version or later
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
Credits
MantisBT thanks Alexander Philiotis of SynerComm for discovering and responsibly reporting the issue.
Affected versions
Packagist
| Package | Vulnerable | Fixed in |
|---|---|---|
| mantisbt/mantisbt | < 2.28.1 |
2.28.1 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
mantisbt/mantisbt Packagist → 2.28.1
- composer
composer require mantisbt/mantisbt:^2.28.1
Severity breakdown
CVSS 4.0 0.0
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
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- None
- User interaction
- None
- Confidentiality (vulnerable system)
- High
- Integrity (vulnerable system)
- High
- Availability (vulnerable system)
- Low
- Confidentiality (subsequent systems)
- None
- Integrity (subsequent systems)
- None
- Availability (subsequent systems)
- None
CVSS 3.1 9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Weakness
CWE-305: Authentication Bypass by Primary Weakness
The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-h2wf-967x-gxvw MantisBT: Stored XSS in print_all_bug_page_word.php | High | Also affects mantisbt/mantisbt |
| GHSA-4vpf-w7qv-5h3q MantisBT: Injection of TIME_TRACKING and REMINDER Notes via REST and SOAP APIs | Medium | Also affects mantisbt/mantisbt |
| GHSA-3v2j-6fw9-f57c MantisBT: REST and SOAP API Issue Update Accepts Unreleased Product Versions From Updaters | Medium | Also affects mantisbt/mantisbt |
| GHSA-vcrw-4xvv-jh49 MantisBT: Reflected XSS in admin/install.php via unescaped printf | Critical | Also affects mantisbt/mantisbt |
| GHSA-77x8-3v3h-hrhv MantisBT: Reflected XSS in admin/install.php | Critical | Also affects mantisbt/mantisbt |
| GHSA-m7ph-9558-mrx3 MantisBT: REST API unauthorized Issue status change | Medium | Also affects mantisbt/mantisbt |
| GHSA-v84x-qvhg-f36r MantisBT: Remote Code Execution via eval() Class Hoisting in adm_config_set.php | High | Also affects mantisbt/mantisbt |
| GHSA-c2xg-qjqw-2v98 MantisBT: SOAP API Authentication Bypass with Privilege Escalation to Administrator | Critical | Also affects mantisbt/mantisbt |
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