WampServer 'lang' Parameter Cross-site Scripting (XSS) Vulnerability

Summary
This host is running WampServer is prone to Cross-Site Scripting vulnerability.
Impact
Successful exploitation will allow remote attackers to execute arbitrary HTML and script code in a user's browser session in the context of an 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 to the 'lang' parameter in index.php is not properly sanitised before being returned to the user.
Affected
WampServer version 2.0i
References