Multiple directory traversal vulnerabilities in MyFaces JavaServer Faces (JSF) in Apache MyFaces Core 2.0.x before 2.0.12 and 2.1.x before 2.1.6 allow remote attackers to read arbitrary files via a .. (dot dot) in the (1) ln parameter to faces/javax.faces.resource/web.xml or (2) the PATH_INFO to faces/javax.faces.resource/.