Directory traversal vulnerability in Microsoft SharePoint Server 2010 SP1 and SharePoint Foundation 2010 SP1 allows remote attackers to bypass intended read restrictions for content, and hijack user accounts, via a crafted URL, aka "SharePoint Directory Traversal Vulnerability."
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.