Cross-site scripting (XSS) vulnerability in manage_proj_cat_add.php in MantisBT 1.2.2 allows remote authenticated administrators to inject arbitrary web script or HTML via the name parameter in an Add Category action.
Mantis 1.1.x through 1.1.2 and 1.2.x through 1.2.0a2 does not set the secure flag for the session cookie in an https session, which can cause the cookie to be sent in http requests and make it easier for remote attackers to capture this cookie.