Mantis Bug Tracker (MantisBT) is an open source issue tracker. Prior to 2.28.2, using show_inline=1 parameter and a valid file_show_inline_token CSRF token on file_download.php, an attacker can execute code by uploading a crafted XHTML attachment referencing a JavaScript attachment. This vulnerability is fixed in 2.28.2.

Project Subscriptions

Vendors Products
Mantisbt Subscribe
Mantisbt Subscribe
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-p6fr-rxq7-xcg8 MantisBT Vulnerable to Stored XSS in File Download
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 29 May 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 28 May 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Mantisbt
Mantisbt mantisbt
Vendors & Products Mantisbt
Mantisbt mantisbt

Thu, 28 May 2026 20:45:00 +0000

Type Values Removed Values Added
Description Mantis Bug Tracker (MantisBT) is an open source issue tracker. Prior to 2.28.2, using show_inline=1 parameter and a valid file_show_inline_token CSRF token on file_download.php, an attacker can execute code by uploading a crafted XHTML attachment referencing a JavaScript attachment. This vulnerability is fixed in 2.28.2.
Title MantisBT: Stored XSS in File Download
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 7.5, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-29T14:50:03.745Z

Reserved: 2026-05-07T16:20:08.658Z

Link: CVE-2026-44657

cve-icon Vulnrichment

Updated: 2026-05-29T14:49:56.539Z

cve-icon NVD

Status : Deferred

Published: 2026-05-28T21:16:31.053

Modified: 2026-05-29T15:11:03.853

Link: CVE-2026-44657

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T22:30:27Z

Weaknesses