		if(!is_array($sections)) $sections = array();
		foreach($sections as $section)
		{
			if(!empty($section['width']) && !in_array($section['width'], $widths))
				array_push($widths, $section['width']);
		}
	}	
	
	return $widths;
}

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.