Improper input validation vulnerability in WordPress Quiz Maker Plugin prior to 6.5.0.6 allows a remote authenticated attacker to perform a Denial of Service (DoS) attack against external services.

The Quiz Maker WordPress plugin before 6.4.9.5 does not escape generated URLs before outputting them in attributes, leading to Reflected Cross-Site Scripting

The Quiz Maker WordPress plugin before 6.4.9.5 does not adequately authorize the `ays_quiz_author_user_search` AJAX action, allowing an unauthenticated attacker to perform a search for users of the system, ultimately leaking user email addresses.

Cross-Site Request Forgery (CSRF) vulnerability in WePupil Quiz Expert plugin <= 1.5.0 versions.

The Quiz Maker WordPress plugin before 6.4.2.7 does not escape some parameters before outputting them back in attributes, leading to Reflected Cross-Site Scripting which could be used against high privilege users such as admin

The Quiz Maker WordPress plugin before 6.2.0.9 did not properly sanitise and escape the order and orderby parameters before using them in SQL statements, leading to SQL injection issues in the admin dashboard