Media Library Assistant <= 3.33 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Attachment Taxonomy Modification

The Media Library Assistant plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the mla_update_compat_fields_action() function in all versions up to, and including, 3.33. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify taxonomy terms on arbitrary attachments.