    protected function _move($source, $targetDir, $name)
    {
        $target = $this->_joinPath($targetDir, $name);
        return $this->connect->rename($source, $target) ? $target : false;
    }
The software 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 software 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.