source: http://www.securityfocus.com/bid/37029/info
  
PHD Help Desk is prone to multiple cross-site scripting vulnerabilities because the application fails to sufficiently sanitize user-supplied data.
  
Attacker-supplied HTML or JavaScript code could run in the context of the affected site, potentially allowing the attacker to steal cookie-based authentication credentials; other attacks are also possible.
  
PHD Help Desk 1.43 is vulnerable; other versions may also be affected. 

http://www.example.com/area_list.php/[code]
http://www.example.com/area_list.php?pagina=1&q_registros=0[code]&orden=nombre