Multiple cross-site request forgery (CSRF) vulnerabilities in Roundcube Webmail before 1.0.4 allow remote attackers to hijack the authentication of unspecified victims via unknown vectors, related to (1) address book operations or the (2) ACL or (3) Managesieve plugins.
https://bugzilla.redhat.com/show_bug.cgi?id=1179780
https://bugs.gentoo.org/show_bug.cgi?id=534766
http://www.securityfocus.com/bid/71909