Mantis Bug Tracker (MantisBT) is an open source issue tracker. From 2.23.0 to 2.28.1, a missing authorization check in MantisBT's file visibility function allows any authenticated user (REPORTER+) to download attachments on private bugnotes they should not be able to access, via the REST API endpoint GET /api/rest/issues/{id}/files and SOAP API mc_issue_attachment_get endpoint. This vulnerability is fixed in 2.28.2.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
mantisbt mantisbt affected
Version Status Constraints
>= 2.23.0, < 2.28.2 affected —

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Project Subscriptions

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-pw5x-2mf9-3xc8 MantisBT has a Private Bugnote Attachment Content Leak via REST API
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/mantisbt/mantisbt/commit/029d9d203d9e4ae96b3e59d552fa7395cc1e5071 cve-icon cve-icon
https://github.com/mantisbt/mantisbt/security/advisories/GHSA-pw5x-2mf9-3xc8 cve-icon cve-icon
https://mantisbt.org/bugs/view.php?id=27039 cve-icon cve-icon
https://mantisbt.org/bugs/view.php?id=36985 cve-icon cve-icon
https://mantisbt.org/bugs/view.php?id=37092 cve-icon cve-icon
History

Thu, 28 May 2026 20:45:00 +0000

Type Values Removed Values Added
Description Mantis Bug Tracker (MantisBT) is an open source issue tracker. From 2.23.0 to 2.28.1, a missing authorization check in MantisBT's file visibility function allows any authenticated user (REPORTER+) to download attachments on private bugnotes they should not be able to access, via the REST API endpoint GET /api/rest/issues/{id}/files and SOAP API mc_issue_attachment_get endpoint. This vulnerability is fixed in 2.28.2.
Title MantisBT: Private Bugnote Attachment Content Leak via REST API
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-28T20:29:20.361Z

Reserved: 2026-04-23T19:17:30.564Z

Link: CVE-2026-42071

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-05-28T21:16:30.017

Modified: 2026-05-28T21:16:30.017

Link: CVE-2026-42071

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T21:30:26Z

Weaknesses