Carousel Slider < 2.2.4 - Cross-Site Request Forgery

Description

The Carousel Slider plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.2.3. This is due to missing or incorrect nonce validation on the add_slide_template() function. This makes it possible for unauthenticated attackers to add slides via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.