The Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wdform_<field_id>_element<form_id> (payload) + disabled_fields<form_id> (pivot)' parameter in all versions up to, and including, 1.15.50 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the targeted form to contain a File Upload field, as the attacker must suppress that field's storage row via the disabled_fields parameter to shift a controlled text-field value into the positional slot where escaping is skipped; execution occurs when an administrator opens the Submissions page for the affected form.