CVE-2026-42070

MantisBT: Authorization Bypass in Bugnote Editing via Issue Update API

Published: May 28, 2026Updated: May 29, 2026 Sources: CVE List NVDCWE-863

N/ACVSS

NVD MITRE

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.

No summary for this CVE yet.

Weaknesses

CWE-863

Affected Products

mantisbt

oss-projectaka mantis bt

mantisbtOn-premWeb App

Enterprise Software / itsm-monitoring

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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MITRE ATT&CK

2 techniques

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References

https://github.com/mantisbt/mantisbt/commit/6e58fae4f22efdc3987f903c8ba2611de17a9435

github.com

https://github.com/mantisbt/mantisbt/security/advisories/GHSA-pq86-j2c2-47f6

github.com

https://mantisbt.org/bugs/view.php?id=37089

mantisbt.org

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