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Medium · 5.3 CVE-2026-42070 EUVD-2026-33026GHSA-pq86-j2c2-47f6

MantisBT: Authorization Bypass in Bugnote Editing via Issue Update API

Published May 28, 2026 · Updated Jun 2, 2026 · Assigned by GitHub_M

Description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Prior to 2.28.2, the mc_issue_update() function in MantisBT allows users having update_bug_threshold access (UPDATER, with default settings) to edit, change view state, and modify time tracking on bugnotes belonging to other users — bypassing the default DEVELOPER (level 55) threshold required by the dedicated mc_issue_note_update() function. This vulnerability is fixed in 2.28.2.

Affected products

VendorProductAffectedFixed
mantisbt mantisbt < 2.28.2 —

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist mantisbt/mantisbt < 2.28.2 2.28.2 GHSA-pq86-j2c2-47f6

References