Missing Authorization in MantisBT - CVE-2026-49280
Published: November 6, 2026
Vulnerability identifier: #VU159814
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-49280
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a low-privileged authenticated attacker to make unauthorized changes to issue workflows in MantisBT.
The vulnerability exists due to missing enforcement of $g_set_status_threshold in REST and SOAP API requests that change issue status. A low-privileged authenticated attacker can submit a status change when their access meets $g_update_bug_threshold but falls below $g_set_status_threshold, bypassing the higher permission required to change status.
Affected software
MantisBT
How to mitigate CVE-2026-49280
Install security update from vendor's website.
MantisBT - update to 2.28.4