WP3D Model Import Viewer <= 1.0.7 - Authenticated (Contributor+) Arbitrary File Upload

The WP3D Model Import Viewer plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the handle_import_file() function in all versions up to, and including, 1.0.7. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.