Input validation vulnerability in User Registration – Custom Registration Form, Login Form And User Profile For WordPress 1.5.5

The User Registration plugin for WordPress is a tool that can be used to create user accounts on a website. Unfortunately, the plugin has a serious security issue in versions up to and including 1.5.5. This issue allows someone who has already logged into the website to inject malicious code into the website. This code would then execute in any visitor’s browser, allowing the attacker to take control of the visitor’s account or perform other malicious activities. To protect yourself, make sure you upgrade to the latest version of the plugin.