Multiple XML external entity (XXE) vulnerabilities in the OpenText Documentum Webtop 6.8.0160.0073 allow remote authenticated users to list the contents of arbitrary directories, read arbitrary files, cause a denial of service, or, on Windows, obtain Documentum user hashes via a (1) crafted DTD, involving unspecified XML structures in a request to xda/com/documentum/ucf/server/transport/impl/GAIRConnector or crafted XML file in a MediaProfile file (2) import or (3) check in.