Directory Traversal vulnerability exists in FusionPBX 4.5.7, which allows a remote malicious user to create folders via the folder variale to app\edit\foldernew.php.
https://resp3ctblog.wordpress.com/2019/10/28/fusionpbx-path-traversal-5/
https://github.com/fusionpbx/fusionpbx/commit/cad71240dee2a82cd5766dd67039a87849031aaa