form.php in PMOS Help Desk 2.4 and earlier sends a redirect to the web browser but does not exit, which allows remote attackers to conduct eval injection attacks and execute arbitrary PHP code via the options array parameter.

Multiple cross-site scripting (XSS) vulnerabilities in (a) PMOS Help Desk 2.4, formerly (b) InverseFlow Help Desk 2.31 and also sold as (c) Ace Helpdesk 2.31, allow remote attackers to inject arbitrary web script or HTML via the (1) id or email parameter to ticketview.php, or (2) the email parameter to ticket.php.