Digital Scribe 1.x - Error Function Cross-Site Scripting

source: https://www.securityfocus.com/bid/8551/info

A problem has been reported in the checking of input by Digital Scribe, potentially allow for cross-site scripting attacks. Because of this, it may be possible for an attacker to steal cookie authentication credentials or launch other attacks.

http://www.example.com/login.php?error=<script>(document.cookie)</script>