The File Manager, Code Editor, and Backup by Managefy plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.4.8 via the ajax_downloadfile() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform actions on files outside of the originally intended directory.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.