MGinternet Property Site Manager - 'listings.asp?s' Cross-Site Scripting

source: https://www.securityfocus.com/bid/21073/info

MGinternet Property Site Manager is prone to multiple input-validation vulnerabilities, including cross-site scripting and SQL-injection issues, because it fails to sufficiently sanitize user-supplied input.

An attacker could exploit these issues to steal cookie-based authentication credentials, compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database implementation.

http://www.example.com/asp/listings.asp?s=&lt;/textarea&gt;'"><script>alert(document.cookie)</script>