Cerberus Helpdesk before 4.0 (Build 600) allows remote attackers to obtain sensitive information via direct requests for "controllers ... that aren't standard helpdesk pages," possibly involving the (1) /display and (2) /kb URIs.

Cross-site scripting (XSS) vulnerability in index.php in Cerberus Helpdesk allows remote attackers to inject arbitrary web script or HTML via the kb_ask parameter.

Multiple SQL injection vulnerabilities in Cerberus Helpdesk allow remote attackers to execute arbitrary SQL commands via the (1) file_id parameter to attachment_send.php, (2) the $addy variable in email_parser.php, (3) $address variable in email_parser.php, (4) $a_address variable in structs.php, (5) kbid parameter to cer_KnowledgebaseHandler.class.php, (6) queues[] parameter to addresses_export.php, (7) $thread variable to display.php, (8) ticket parameter to display_ticket_thread.php.