Directory traversal vulnerability in index.php in webEdition 6.0.0.4 and earlier, when register_globals is enabled and magic_quotes_gpc is disabled, allows remote attackers to include and execute arbitrary files via a .. (dot dot) in the WE_LANGUAGE 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.