GitHub Advisoryadvisory · Packagist
GHSA-rmp5-5jj7-gmvf MantisBT has an authorization bypass that allows reading attachments after losing access to a private issue
MEDIUM
Official page ↗
- Aliases
- CVE-2026-34744
- Ecosystem
- Packagist
- Packages
- mantisbt/mantisbt
- Severity
- Moderate
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- Weaknesses
- CWE-200
- Reviewed
- 2026-05-11
Affected packages
• Packagist mantisbt/mantisbt: < 2.28.2 → fixed in 2.28.2
Description
MantisBT permits a user to list and download their own attachments from an Issue created by another user, even after that Issue becomes private and direct access to it is denied.
Impact
The loss of confidentiality caused by this vulnerability is minimal, considering that only the attachments that were previously uploaded by the user themselves remains accessible.
Patches
• de7bdeec36de066235e38a77bf056917d951c84d
Workarounds
None.
Credits
Thanks to Vishal Shukla for discovering and responsibly reporting the issue.
Related
Alias · CVE (1)
- CVE-2026-34744 Mantis Bug Tracker (MantisBT) is an open source issue tracker. vulnerability
Weakness · CWE (1)
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
References
- https://github.com/mantisbt/mantisbt/security/advisories/GHSA-rmp5-5jj7-gmvf web
- https://nvd.nist.gov/vuln/detail/CVE-2026-34744 advisory
- https://github.com/mantisbt/mantisbt/commit/de7bdeec36de066235e38a77bf056917d951c84d web
- https://github.com/mantisbt/mantisbt package
- https://mantisbt.org/bugs/view.php?id=36977 web