Multiple cross-site scripting (XSS) vulnerabilities in BugTracker.NET before 3.4.5 allow remote authenticated users to inject arbitrary web script or HTML via (1) the pcd parameter to edit_bug.aspx, (2) the bug_id parameter to edit_comment.aspx, (3) the id parameter to edit_user_permissions2.aspx, or (4) the default_name parameter to edit_customfield.aspx.  NOTE: some of these details are obtained from third party information.