mantisbt Mantis Bug Tracker up to 2.28.0 SOAP API Password authentication bypass

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in mantisbt Mantis Bug Tracker up to 2.28.0. This affects an unknown function of the component SOAP API. This manipulation of the argument Password causes authentication bypass. This vulnerability is handled as CVE-2026-30849. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in mantisbt Mantis Bug Tracker up to 2.28.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component SOAP API. The manipulation of the argument password with an unknown input leads to a authentication bypass vulnerability. The CWE definition for the vulnerability is CWE-305. 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions prior to 2.28.1 running on MySQL family databases are affected by an authentication bypass vulnerability in the SOAP API, as a result of an 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. 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. Version 2.28.1 contains a patch. Disabling the SOAP API significantly reduces the risk, but still allows the attacker to retrieve user account information including email address and real name.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-30849 since 03/05/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 303449 (MantisBT < 2.28.1 SOAP API Authentication Bypass (GHSA-phrq-pc6r-f6gh)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.28.1 eliminates this vulnerability. Applying the patch b349e5c890eeda9bd82e7c7e14479853f8a30d9f is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (303449). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authentication bypass
CWE: CWE-305 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 303449
Nessus Name: MantisBT < 2.28.1 SOAP API Authentication Bypass (GHSA-phrq-pc6r-f6gh)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Mantis Bug Tracker 2.28.1
Patch: b349e5c890eeda9bd82e7c7e14479853f8a30d9f

Timelineinfo

03/05/2026 CVE reserved
03/24/2026 +19 days Advisory disclosed
03/24/2026 +0 days VulDB entry created
03/28/2026 +4 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-phrq-pc6r-f6gh
Status: Confirmed

CVE: CVE-2026-30849 (🔒)
GCVE (CVE): GCVE-0-2026-30849
GCVE (VulDB): GCVE-100-352591

Entryinfo

Created: 03/24/2026 02:30
Updated: 03/28/2026 03:04
Changes: 03/24/2026 02:30 (71), 03/25/2026 05:31 (2), 03/28/2026 03:04 (12)
Complete: 🔍
Cache ID: 216:541:103

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