mantisbt Mantis Bug Tracker up to 2.28.1 POST bug_monitor_add.php authorization

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in mantisbt Mantis Bug Tracker up to 2.28.1. This vulnerability affects unknown code of the file bug_monitor_add.php of the component POST Handler. The manipulation results in authorization. This vulnerability is reported as CVE-2026-34579. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in mantisbt Mantis Bug Tracker up to 2.28.1. Affected is an unknown part of the file bug_monitor_add.php of the component POST Handler. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. This is going to have an impact on confidentiality. CVE summarizes:

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior are vulnerable to Authorization Bypass through the private issue monitoring feature . Using a crafted POST request to bug_monitor_add.php, a user with project-level access can add themselves as a monitor for a private issue they do not have access to. Despite displaying an Access Denied error, the application accepts the request and creates a monitor relationship for the private issue. Direct access to the private issue remains blocked, but the user will receive email notifications for updates, leading to disclosure of the private issue's metadata and content. This issue has been fixed in version 2.28.2.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-34579 since 03/30/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available.

By approaching the search of inurl:bug_monitor_add.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.28.2 eliminates this vulnerability. Applying the patch 0a93267deba445fb9d15250c16e6fdb1246ffa65 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.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

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: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Authorization
CWE: CWE-863 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Mantis Bug Tracker 2.28.2
Patch: 0a93267deba445fb9d15250c16e6fdb1246ffa65

Timelineinfo

03/30/2026 CVE reserved
05/20/2026 +51 days Advisory disclosed
05/20/2026 +0 days VulDB entry created
05/20/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-ggw7-9675-6v4v
Status: Confirmed

CVE: CVE-2026-34579 (🔒)
GCVE (CVE): GCVE-0-2026-34579
GCVE (VulDB): GCVE-100-364752

Entryinfo

Created: 05/20/2026 05:53
Changes: 05/20/2026 05:53 (71)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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