wml_backend/p1_ipp/ipp.src in Website META Language (WML) 2.0.11 allows local users to overwrite arbitrary files via a symlink attack on the ipp.$$.tmp temporary file.
Improper Link Resolution Before File Access The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.