Access violation vulnerability in Quiz Maker 6.7.0.80

A plugin called Quiz Maker used on WordPress websites has a security issue that could lead to sensitive information being exposed. This can happen in all versions of the plugin up to version 6.7.0.80. The problem is that the plugin allows anyone to access quiz answers through a feature called ays_quiz_check_answer, without making sure they have the proper authorization. This means that even people who are not logged in can see the answers to quiz questions by using a publicly available code. This makes it easy for hackers to get their hands on private information.