Input validation vulnerability in Front End Users 3.2.30

The Front End Users plugin for WordPress has a security vulnerability that could allow hackers to inject harmful code into a website. This vulnerability, which affects all versions up to 3.2.30, is caused by a lack of proper protection for user-provided information. It can be exploited by authenticated attackers with contributor-level access or higher, allowing them to insert malicious scripts that will run whenever a user visits a compromised page.