Vulnerability 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.
Related Weaknesses (CWE)
References
- https://github.com/mantisbt/mantisbt/commit/029d9d203d9e4ae96b3e59d552fa7395cc1e
- https://github.com/mantisbt/mantisbt/security/advisories/GHSA-pw5x-2mf9-3xc8
- https://mantisbt.org/bugs/view.php?id=27039
- https://mantisbt.org/bugs/view.php?id=36985
- https://mantisbt.org/bugs/view.php?id=37092
FAQ
What is CVE-2026-42071?
CVE-2026-42071 is a documented vulnerability. 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 ...
How severe is CVE-2026-42071?
CVSS scoring is not yet available for CVE-2026-42071. Check NVD for updates.
Is there a patch for CVE-2026-42071?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.