ARForms <= 7.1.3 - Unauthenticated Stored Cross-Site Scripting via 'value' Parameter

The ARForms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the value parameter of the arf_save_incomplete_form_data 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.