CVE-2021-24460: Popup Like box - Page Plugin < 3.5.3 - Authenticated Blind SQL Injections

The get_fb_likeboxes() function in the Popup Like box – Page Plugin WordPress plugin before 3.5.3 did not use whitelist or validate the orderby parameter before using it in SQL statements passed to the get_results() DB calls, leading to SQL injection issues in the admin dashboard