The Tumult Hype Animations plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the hypeanimations_panel() function in all versions up to, and including, 1.9.15. 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.
https://wordpress.org/plugins/tumult-hype-animations/#developers
https://plugins.trac.wordpress.org/changeset/3197761/
https://plugins.trac.wordpress.org/browser/tumult-hype-animations/trunk/includes/adminpanel.php#L277
https://github.com/tumult/hype-wordpress-plugin/commit/1702d3d4fd0fae9cb9fc40cdfc3dfb8584d5f04c