The Themify Store Locator plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.1.9. This is due to missing or incorrect nonce validation on the setting_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.
https://plugins.trac.wordpress.org/browser/themify-store-locator/tags/1.1.9/includes/init.php#L142