The JoomSport – for Sports: Team & League, Football, Hockey & more plugin for WordPress is vulnerable to time-based SQL Injection via the 'order' parameter in all versions up to, and including, 5.7.9 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The affected admin page lacks nonce or CSRF protection on the GET request, meaning an unauthenticated attacker could exploit this vulnerability by tricking an authenticated administrator into issuing a crafted request. Additionally, the vulnerability is only triggered when the 'orderby' parameter is also present and non-empty alongside the 'order' parameter.