Unauthenticated Attackers Can Inject Arbitrary Web Scripts Through Reflected Cross-Site Scripting Vulnerability in WS Form LITE Contact Form Builder

Summary

The WS Form LITE – Drag & Drop Contact Form Builder for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of remove_query_arg without appropriate escaping on the URL in all versions up to, and including, 1.9.244. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.