Pinpoint Booking System <= 2.9.9.5.6 is vulnerable to CSRF to Stored Cross Site Scripting (XSS) vulnerability

The Pinpoint Booking System plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.9.9.5.1. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to modify settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.