Integration for Contact Form 7 and Zoho CRM, Bigin <= 1.2.2 - Cross-Site Request Forgery via settings_page function

The Integration for Contact Form 7 and Zoho CRM, Bigin plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.2.2. This is due to missing or incorrect nonce validation on the 'settings_page' function. This makes it possible for unauthenticated attackers to modify plugin settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.