Ibtana – Ecommerce Product Addons <= 0.4.7.7 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Post Meta Modification via 'iepa_use_gt_editor' AJAX Action

The Ibtana – Ecommerce Product Addons plugin for WordPress is vulnerable to unauthorized post meta modification due to a missing capability check on the 'iepa_use_gt_editor' AJAX action in all versions up to, and including, 0.4.7.7. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update or delete arbitrary post meta entries via the 'iepa_builder' meta key.