Contact Form to Any API <= 3.0.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'cf7anyapi_form_field' Post Meta

The Contact Form to Any API plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'cf7anyapi_form_field' Post Meta in all versions up to, and including, 3.0.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.