VIR Vulnerability Intelligence Relay

CVE-2026-40596

high
Published 2026-05-11 · Modified 2026-05-11
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
—
CVSS v4 NEW
7.2
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:L/VA:L/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
VIR risk
8.0

Description

MantisBT is Vulnerable to XSS leading to account takeover via updating a user's font family preference

Predictions

Exploit likelihood
20%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact
EcosystemPackageVulnerableFixed
php Packagistmantisbt/mantisbt>=2.11.0,<=2.28.1
php Packagistmantisbt/mantisbt>=2.11.0,<2.28.22.28.2
php COMPOSERmantisbt/mantisbt>= 2.11.0, <= 2.28.12.28.2

References

CWEs

CWE-79

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.