CVE-2026-34970 PUBLISHED

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

Assigner: GitHub_M
Reserved: 31.03.2026 Published: 19.05.2026 Updated: 20.05.2026

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.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	mantisbt
Product	mantisbt
Versions	Version < 2.28.2 is affected

References

Problem Types

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE