CVE-2026-42070
Medium
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductMantisbt/mantisbt
PublishedMay 28, 2026
First seenMay 28, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- mantisbt/mantisbt2.28.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mantisbt/mantisbtPackagist | v < 2.28.2 | 2.28.2 |
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