Cross-site scripting vulnerability exists in My WP Customize Admin/Frontend versions prior to ver 1.24.1. If a malicious administrative user customizes the administrative page with some malicious contents, an arbitrary script may be executed on the web browser of the other users who are accessing the page.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.