DeluxeBB 1.3 allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by header_html.php.

misc.php in DeluxeBB 1.3 allows remote attackers to register accounts without a valid email address via a valemail action with the valmem set to a pre-assigned user ID, which is visible from a memberlist action.

Cross-site scripting (XSS) vulnerability in misc.php in DeluxeBB 1.3 allows remote attackers to inject arbitrary web script or HTML via the page parameter.

DeluxeBB 1.3 stores sensitive information under the web root with insufficient access control, which allows remote attackers to obtain user and configuration information, log data, and gain administrative access via a direct request to scripts in (1) templates/ including (2) templates/deluxe/admincp/, (3) templates/corporate/admincp/, and (4) templates/blue/admincp/; (5) images/; (6) logs/ including (7) logs/cp.php; (8) wysiwyg/; (9) docs/; (10) classes/; (11) lang/; and (12) settings/.

DeluxeBB 1.3 allows remote attackers to obtain sensitive information via a crafted page parameter to misc.php, which reveals the installation path in an error message. NOTE: this issue might be resultant from improperly controlled computation in tools.php that leads to a denial of service (CPU or memory consumption).