IdealBB 1.4.9 - 'error.asp' Cross-Site Scripting

source: https://www.securityfocus.com/bid/8360/info

IdealBB error.asp page has been reported prone to a cross-site scripting vulnerability.

The issue presents itself due to a lack of sufficient sanitization performed by functions in the error.asp script on user-influenced URI parameters. This vulnerability may be exploited to permit the theft of cookie authentication credentials if a malicious link is followed. Other attacks may also be possible.

http://www.example.com/idealbb/error.asp?e=16&sessionID={xxxxxxxx-xxxx-xxxx-
xxxx-xxxxxxxxxxxx}&msg=<script>alert('Zone-h')</script>