The Team Circle Image Slider With Lightbox plugin for WordPress is vulnerable to Cross-Site Request Forgery in version 1.0. This is due to missing or incorrect nonce validation on the circle_thumbnail_slider_with_lightbox_image_management_func() function. This makes it possible for unauthenticated malicious users to edit image data which can be used to inject malicious JavaScript, along with deleting images, and uploading malicious files via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Vulmon