The ARForms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the value parameter of the arfsaveincompleteformdata AJAX action in all versions up to, and including, 7.1.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that will execute whenever an administrator views the "Partial Filled Form Entries" page in the ARForms dashboard.

The ARForms - Premium WordPress Form Builder Plugin WordPress plugin before 6.4.1 does not properly escape user-controlled input when it is reflected in some of its AJAX actions.

The Contact Form, Survey, Quiz & Popup Form Builder WordPress plugin before 1.7.1 does not sanitise and escape some parameters when outputting them in the page, which could allow unauthenticated users to perform Cross-Site Scripting attacks.