Cross-site scripting (XSS) vulnerability in MantisBT 1.2.13 and later before 1.2.20.

A cross-site scripting (XSS) vulnerability in the MantisBT Move Attachments page (move_attachments_page.php, part of admin tools) allows remote attackers to inject arbitrary code through a crafted 'type' parameter, if Content Security Protection (CSP) settings allows it. This is fixed in 1.3.9, 2.1.3, and 2.2.3. Note that this vulnerability is not exploitable if the admin tools directory is removed, as recommended in the "Post-installation and upgrade tasks" of the MantisBT Admin Guide. A reminder to do so is also displayed on the login page.

The string_sanitize_url function in core/string_api.php in MantisBT 1.2.0a3 through 1.2.18 uses an incorrect regular expression, which allows remote attackers to conduct open redirect and phishing attacks via a URL with a ":/" (colon slash) separator in the return parameter to login_page.php, a different vulnerability than CVE-2014-6316.