Multiple cross-site scripting (XSS) vulnerabilities in Kailash Nadh boastMachine (formerly bMachine) 3.1 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) user_login, (2) full_name, and (3) URL parameters in register.php; and allow remote authenticated administrators to inject arbitrary web script or HTML via the (4) cat_list and (5) key parameters in a certain portion of the admin interface.