Vulnerability · Published May 28, 2026 · Assigned by GitHub_M
CVE-2026-44655MantisBT: Stored XSS on Move Attachments Admin Page
High 8.6
In plain English
A high-severity cross-site scripting in mantisbt from mantisbt. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Mantis Bug Tracker (MantisBT) is an open source issue tracker. From 1.3.0 to 2.28.1, unescaped Project Name allows an attacker that can set it (which typically requires manager or administrator access level) to inject HTML in Move Attachments admin page. This vulnerability is fixed in 2.28.2.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | mantisbt/mantisbt | 2.28.2 | GHSA-7mqj-8gj2-cg59 |
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N