Logo Showcase with Slick Slider < 1.2.5 - Subscriber+ Arbitrary Media Title/Description/Alt Text/URL Update

The Logo Showcase with Slick Slider WordPress plugin before 1.2.5 does not have CSRF and authorisation checks in the lswss_save_attachment_data AJAX action, allowing any authenticated users, such as Subscriber, to change title, description, alt text, and URL of arbitrary uploaded media.