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Medium · 5.3 CVE-2026-34744 EUVD-2026-31004GHSA-rmp5-5jj7-gmvf

MantisBT authorization bypass allows continued access to self-uploaded attachments on private issues

Published May 19, 2026 · Updated May 20, 2026 · Assigned by GitHub_M

Description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior permit a user to list and download their own attachments from an Issue created by another user even after it becomes private, bypassing read access revocation. The loss of confidentiality caused by this vulnerability is minimal, considering that only attachments previously uploaded by the user themselves remain accessible. This issue has been fixed in version 2.82.2.

Affected products

VendorProductAffectedFixed
mantisbt mantisbt < 2.28.2 —

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist mantisbt/mantisbt < 2.28.2 2.28.2 GHSA-rmp5-5jj7-gmvf

References