Input validation vulnerability in Regpack 0.1

The Regpack plugin for WordPress is not secure in versions up to and including 0.1. This is because it does not properly check the information it receives and does not protect against malicious code. As a result, if someone with administrator-level access (or higher) injects malicious code into a page, that code will be executed any time someone visits that page. This is only a concern in multi-site installations or installations where the user’s HTML has been restricted.