Cartweaver 'helpFileName' Parameter Local File Include Vulnerability

Summary
This host is running Cartweaver and is prone to local file inclusion vulnerability.
Impact
Successful exploitation could allow attackers to perform directory traversal attacks and read arbitrary files on the affected application. Impact Level: Application
Solution
No solution or patch was made available for at least one year since disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one.
Insight
Input passed via 'helpFileName' parameter to AdminHelp.php is not properly sanitised before being used to include files.
Affected
Cartweaver version 3.0
References