Input validation vulnerability in Theme per user 1.0.2

The Theme Per User plugin for WordPress is vulnerable to a type of attack that could allow unauthorized users to insert malicious code into the system. This code could then be used to delete files, retrieve sensitive information, or run commands. The vulnerability affects all versions up to 1.0.2 but not versions higher than that. Unfortunately, if another plugin or theme is installed, the malicious code could be used to do even more damage.