Directory traversal vulnerability in highlight.php in bcoos 1.0.9 through 1.0.13 allows remote attackers to read arbitrary files via (1) .. (dot dot) or (2) C: folder 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.