PT-2026-60393 · Packagist · Mantisbt/Mantisbt

CVE-2026-62944 · Published 2026-07-15 · Updated 2026-07-15

OSV

CVSS v4.0

8.6

High

Base vector

AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

A missing output encoding call in print all bug page word.php allows any authenticated user to inject arbitrary HTML into an IMG tag's alt attribute via an image attachment with a crafted filename such as probe." onload="alert(1).

When any user views the HTML export page (print all bug page word.php?type page=html&export=1), the rendered IMG tag becomes <img src="..." alt="" onload="alert(1)" />, breaking out of the alt attribute.

Impact

Cross-site scripting.

Impact is limited by MantisBT's Content Security Policy.

Patches

• https://github.com/mantisbt/mantisbt/commit/bdd0e364f62759de272dfd4c89b4f51d27be9daa

Workarounds

None

Resources

• https://mantisbt.org/bugs/view.php?id=37234

Credits

MantisBT thanks the Dracosec Research Limited team (Chris Chan, Krecendo Hui, William Lam) for discovering and responsibly reporting the issue.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-62944

GHSA-H2WF-967X-GXVW

Affected Products

Mantisbt/Mantisbt

References · 5

• https://osv.dev/vulnerability/GHSA-h2wf-967x-gxvw · Vendor Advisory
• https://github.com/mantisbt/mantisbt · Note
• https://github.com/mantisbt/mantisbt/security/advisories/GHSA-h2wf-967x-gxvw · Note
• https://github.com/mantisbt/mantisbt/commit/bdd0e364f62759de272dfd4c89b4f51d27be9daa · Note
• https://mantisbt.org/bugs/view.php?id=37234 · Note