The Featured Image Plus – Quick & Bulk Edit with Unsplash plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fip_save_attach_featured function in all versions up to, and including, 1.6.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update featured image of any post.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.