oik < 4.12.1 - Cross-Site Request Forgery

Description

The oik plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 4.12.0. This is due to missing or incorrect nonce validation on the _oik_plugins_delete_settings() function. This makes it possible for unauthenticated attackers to delete 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.