Cerberus Helpdesk is susceptible to cross site scripting attacks.
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Inputs in the Cerberus Helpdesk is not properly sanitized, and XSS is possible in a lot of the systems input fields and url parameters.
You can add XSS that will hit every user of the system, and even simple scripting tags like <script>alert(f)</script> is allowed
PoC: http://www.SITE.example/tts2/clients.php?mode=search&sid=<sidvalue>&contact_search=<script>alert('c')</script>
Vendors site:
http://www.webgroupmedia.com
Please credit to: Preben Nyløkken