Featured Image Plus <= 1.6.4 - Missing Authorization to Authenticated (Subscriber+) Featured Image Update

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, 1.6.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update featured image of any post.