CVE-2017-7620: Mantisbt

Medium severity, CVSS 6.5. EPSS: 1.4% chance of exploitation in the next 30 days.

MantisBT before 1.3.11, 2.x before 2.3.3, and 2.4.x before 2.4.1 omits a backslash check in string_api.php and consequently has conflicting interpretations of an initial \/ substring as introducing either a local pathname or a remote hostname, which leads to (1) arbitrary Permalink Injection via CSRF attacks on a permalink_page.php?url= URI and (2) an open redirect via a login_page.php?return= URI.

Affected products

• Mantisbt Mantisbt: up to and including 1.3.10; version 2.0.0 only; version 2.0.1 only; version 2.1.0 only; version 2.1.1 only; version 2.1.2 only; …

Published 2017-05-21. Last modified 2026-06-17.