Input validation vulnerability in AuthorSure 2.3

The AuthorSure plugin for WordPress has a security issue that can allow attackers to manipulate settings and insert harmful code onto a website. This vulnerability affects all versions up to and including 2.3. It occurs because the ‘authorsure’ page does not properly check for a specific code called a nonce. This means that if someone without proper authorization can trick a site administrator into clicking a link, they can exploit this vulnerability.