Mobile Address Bar Changer <= 3.0 is vulnerable to Cross Site Request Forgery (CSRF) vulnerability

The Mobile Address Bar Changer plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.0. This is due to missing or incorrect nonce validation on the mabc_options_page() function. 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.