Input validation vulnerability in WP Edit 4.0.4

The WP Edit plugin for WordPress has a security issue where it can be targeted by hackers. This can happen on versions up to and including 4.0.4. The plugin does not properly clean or protect certain types of code, making it possible for attackers with high-level access to insert their own harmful code on certain pages. This only affects websites with multiple sites or if certain security measures have been turned off.