SupportCandy < 2.2.7 - CSRF to Cross-Site Scripting

The plugin does not have CSRF check in the wpsc_tickets AJAX action, nor has any sanitisation or escaping in some of the filter fields which could allow attackers to make a logged in user having access to the ticket lists dashboard set an arbitrary filter (stored in their cookies) with an XSS payload in it.

PoC

Go to https://example.com/wp-admin/admin.php?page=wpsc-tickets to trigger the XSS