The Demo Awesome plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the install_plugin function in all versions up to, and including, 1.0.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate arbitrary plugins..
https://wordpress.org/plugins/demo-awesome/#developers
https://plugins.trac.wordpress.org/browser/demo-awesome/trunk/inc/admin/js/admin.js#L1684