Cross-site scripting vulnerabilities in MyHelpDesk 20020509 and possibly other versions allows remote attackers to execute script as other users via a (1) Title or (2) Description when a new ticket is created by a support assistant via the \id\ parameter to the index.php script with the (3) tickettime (4) ticketfiles or (5) updateticketlog operations or (6) via the update section when a ticket is edited.