Directory traversal vulnerability in Sergey Lyubka Simple HTTPD (shttpd) 1.38 and earlier on Windows allows remote attackers to read arbitrary files via a ..\ (dot dot backslash) in the URI.
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.