The Insight Core WordPress plugin through 1.0 does not have any authorisation and CSRF checks in the insightcustomizeroptionsimport (available to any authenticated user), does not validate user input before passing it to unserialize(), nor sanitise and escape it before outputting it in the response. As a result, it could allow users with a role as low as Subscriber to perform PHP Object Injection, as well as Stored Cross-Site Scripting attacks