CVE-2026-34970

MantisBT Bugnote Revision Page Leaks Private Issue Metadata After Issue Access Is Revoked

State: Published
Severity: 5.3 Medium
Published: May 19, 2026
Updated: May 20, 2026
Reserved: Mar 31, 2026

Description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior allow a bugnote author to access the note's Revisions page after losing access to the parent private issue. This issue has been fixed in version 2.28.2.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	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	GitHub_M

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

Product	Versions
mantisbtmantisbt	< 2.28.2Affected

References

https://github.com/mantisbt/mantisbt/security/advisories/GHSA-crmx-4p49-46m2
https://github.com/mantisbt/mantisbt/commit/71df1f67e05b2050cd4bd87839e6cc13747cf03f
https://mantisbt.org/bugs/view.php?id=36978

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