Directory traversal vulnerability in ContentServer.py in the Wiki Server in Apple Mac OS X 10.5.2 (aka Leopard) allows remote authenticated users to write arbitrary files via ".." sequences in file attachments.
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.