CVE-2019-15539: Mantisbt

Medium severity, CVSS 6.1. EPSS: 1.2% chance of exploitation in the next 30 days.

The proj_doc_edit_page.php Project Documentation feature in MantisBT before 2.21.3 has a stored cross-site scripting (XSS) vulnerability, allowing execution of arbitrary code (if CSP settings permit it) after uploading an attachment with a crafted filename. The code is executed when editing the document's page.

Affected products

• Mantisbt Mantisbt: before 2.21.3 (fixed in 2.21.3)

Published 2020-03-19. Last modified 2026-06-17.