Webcraftic Clearfy – WordPress optimization plugin <= 2.3.2 - Cross-Site Request Forgery to Plugin Settings Update via 'setup-wbcr_clearfy'

The Clearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.3.2. This is due to missing or incorrect nonce validation on the 'setup-wbcr_clearfy' page. This makes it possible for unauthenticated attackers to update the plugins settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.