LearnPress <= 4.1.7.3.2 is vulnerable to Auth. SQL Injection (SQLi) vulnerability

The LearnPress plugin for WordPress is vulnerable to SQL Injection in versions up to, and including, 4.1.7.3.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query passed via the learn_press_recent_courses and learn_press_featured_courses shortcodes. This makes it possible for authenticated attackers with subscriber level permissions and above to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.