SKT Page Builder < 4.8 - Authenticated (Subscriber+) Arbitrary File Upload

Description

The SKT Page Builder plugin for WordPress is vulnerable to arbitrary file uploads due to a missing capability check on the 'addLibraryByArchive' function in all versions up to, and including, 4.6. This makes it possible for authenticated attackers, with subscriber-level access and above, to upload arbitrary files that make remote code execution possible.