Multiple cross-site scripting (XSS) vulnerabilities in the administrative backend in MyBB (aka MyBulletinBoard) before 1.8.4 allow remote authenticated users to inject arbitrary web script or HTML via the (1) MIME-type field in an add action in the config-attachment_types module to admin/index.php; (2) title or (3) short description field in an add action in the (a) config-mycode or (b) user-groups module to admin/index.php; (4) title field in an add action in the (c) forum-management or (d) tool-tasks module to admin/index.php; (5) name field in an add_set action in the style-templates module to admin/index.php.
* MyBB (aka MyBulletinBoard) before 1.8.4
* MyBB (aka MyBulletinBoard) after 1.8.4
Multiple vulnerabilities were reported in MyBB. A remote user can conduct cross-site scripting attacks. A remote user can conduct cross-site request forgery attacks. A remote user can determine the installation path. The impact of one vulnerability was not specified.Several scripts do not properly filter HTML code from user-supplied input before displaying the input A remote user can cause arbitrary scripting code to be executed by the target user's browser