ColorMag <= 4.0.19 - Missing Authorization to Authenticated (Subscriber+) ThemeGrill Demo Importer Plugin Installation

The ColorMag theme for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the welcome_notice_import_handler() function in all versions up to, and including, 4.0.19. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install the ThemeGrill Demo Importer plugin.