Simple Share Buttons Adder <= 4.4 - Cross-Site Request Forgery

The Simple Share Buttons Adder plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 4.4. This is due to missing nonce validation on simple-share-buttons-adder page. This makes it possible for unauthenticated attackers to inject malicious web scripts via the 'ssba_share_text' parameter through a forged request granted they can trick a site administrator into performing an action such as clicking on a link.