Directory traversal vulnerability in the showSource function in showSource.php in World of Phaos 4.0.1 allows remote attackers to read arbitrary files via directory traversal sequences in the file parameter.
Improper Limitation of a Pathname to a Restricted 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.