high7.2
CVE-2026-42071
MantisBT has a Private Bugnote Attachment Content Leak via REST API
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | mantisbt/mantisbt | >= 2.23.0, <= 2.28.1 | 2.28.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-pw5x-2mf9-3xc8
- https://github.com/mantisbt/mantisbt/security/advisories/GHSA-pw5x-2mf9-3xc8
- https://github.com/mantisbt/mantisbt/commit/029d9d203d9e4ae96b3e59d552fa7395cc1e5071
- https://github.com/advisories/GHSA-xjmx-cprh-646r
- https://mantisbt.org/bugs/view.php?id=27039
- https://mantisbt.org/bugs/view.php?id=36985
- https://mantisbt.org/bugs/view.php?id=37092
- https://nvd.nist.gov/vuln/detail/CVE-2026-42071