IBM WebSphere Portal 6.1.0 through 6.1.0.6 CF27, 6.1.5 through 6.1.5.3 CF27, 7.0.0 through 7.0.0.2 CF28, 8.0.0 through 8.0.0.1 CF13, and 8.5.0 before CF02 allows remote authenticated users to cause a denial of service (disk consumption) by uploading large files.