source: http://www.securityfocus.com/bid/8573/info

A cross-site scripting vulnerability has been reported for Escapade. The vulnerability exists due to insufficient sanitization of some user-supplied values.

An attacker could exploit this issue to execute arbitrary HTML code in the browser of a remote user who follows a malicious link. Code execution would occur in the context of the vulnerable site. It has also been reported that this issue may be exploited to disclose the installation path of the affected software. 

http://www.example.com/cgi-bin/esp?PAGE=<script>alert(document.domain)
</script>