Salon booking system <= 9.6.5 - Cross-Site Request Forgery to Settings Update

The Salon booking system plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 9.6.5. This is due to missing or incorrect nonce validation on the salon-settings page. This makes it possible for unauthenticated attackers to modify the plugin's settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.