The Cybozu KUNAI application before 2.0.6 for Android allows remote attackers to execute arbitrary Java methods, and obtain sensitive information or execute arbitrary commands, via a crafted web site.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2012-3955
http://jvndb.jvn.jp/jvndb/JVNDB-2012-000083