WP Championship <= 9.2 is vulnerable to Multiple Cross-Site Request Forgery (CSRF) vulnerabilities

The wp-championship plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 9.2. This is due to missing or incorrect nonce validation on several functions. This makes it possible for unauthenticated attackers to perform a wide range of administrative tasks via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.