Wiccle Web Builder 'post_text' Cross-Site Scripting Vulnerability

Summary
The host is running Wiccle Web Builder and is prone to Cross-Site scripting vulnerability.
Impact
Successful exploitation will allow attackers to execute arbitrary web script or HTML in a user's browser session in the context of an affected site. 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
The flaw is caused by improper validation of user-supplied input passed via the 'post_text' parameter in a site 'custom_search' action to 'index.php', that allows attackers to execute arbitrary HTML and script code on the web server.
Affected
Wiccle Web Builder (WWB) Versions 1.00 and 1.0.1
References