Droip < 2.5.2 - Authenticated (Subscriber+) Arbitrary File Upload

The Droip plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the make_google_font_offline() function in all versions up to, and excluding, 2.5.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.