WordPress Plugin: wp-hotel-booking: CVE-2023-5799: Incorrect Authorization

The WP Hotel Booking plugin for WordPress is vulnerable to unauthorized modification of data due to insufficient authorization checks on the tp_extra_package_remove() function hooked via AJAX in all versions up to, and including, 2.0.7. This makes it possible for authenticated attackers, with contributor-level access and above, to delete arbitrary posts. While the patch for CVE-2023-5651 ensured subscriber-level users couldn't delete arbitrary posts, the checks were not sufficient in preventing higher authenticated users such as contributors from deleting arbitrary posts.