CVE-2026-44657

Mantis Bug Tracker MantisBT is an open source issue tracker. Prior to 2.28.2, using showinline=1 parameter and a valid fileshowinlinetoken CSRF token on filedownload.php, an attacker can execute code by uploading a crafted XHTML attachment referencing a JavaScript attachment. This vulnerability i...

CVE-2026-44657 MantisBT: Stored XSS in File Download

Mantis Bug Tracker MantisBT is an open source issue tracker. Prior to 2.28.2, using showinline=1 parameter and a valid fileshowinlinetoken CSRF token on filedownload.php, an attacker can execute code by uploading a crafted XHTML attachment referencing a JavaScript attachment. This vulnerability i...

EUVD-2026-33023

Mantis Bug Tracker MantisBT is an open source issue tracker. Prior to 2.28.2, using showinline=1 parameter and a valid fileshowinlinetoken CSRF token on filedownload.php, an attacker can execute code by uploading a crafted XHTML attachment referencing a JavaScript attachment. This vulnerability i...

Cross-site Scripting (XSS)

Overview mantisbt/mantisbt is a mantis bug tracker. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the filedownload.php process when the showinline=1 parameter and a valid fileshowinlinetoken CSRF token are provided. An attacker can execute arbitrary JavaScript co...

PT-2026-39900

Name of the Vulnerable Software and Affected Versions MantisBT affected versions not specified Description An attacker can execute code via stored cross-site scripting XSS by uploading a crafted XHTML attachment that references a JavaScript attachment. This is achieved by using the 'file...