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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.

PUBLISHED Reserved 2026-04-23 | Published 2026-05-28 | Updated 2026-05-29 | Assigner GitHub_M




HIGH: 7.2CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

Problem types

CWE-862: Missing Authorization

Product status

>= 2.23.0, < 2.28.2
affected

References

github.com/...ntisbt/security/advisories/GHSA-pw5x-2mf9-3xc8

github.com/...ommit/029d9d203d9e4ae96b3e59d552fa7395cc1e5071

mantisbt.org/bugs/view.php?id=27039

mantisbt.org/bugs/view.php?id=36985

mantisbt.org/bugs/view.php?id=37092

cve.org (CVE-2026-42071)

nvd.nist.gov (CVE-2026-42071)

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