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.