Two XSS flaws were fixed in roundcube 0.9.3 [1]:

* Fix XSS vulnerability when saving HTML signatures [2],[3]
* Fix XSS vulnerability when editing a message "as new" or draft [2],[4]


[1] http://trac.roundcube.net/wiki/Changelog#RELEASE0.9.3
[2] http://trac.roundcube.net/ticket/1489251
[3] http://trac.roundcube.net/changeset/ce5a6496fd6039962ba7424d153278e41ae8761b/github
[4] http://trac.roundcube.net/changeset/93b0a30c1c8aa29d862b587b31e52bcc344b8d16/github


Other references:

http://bugs.gentoo.org/show_bug.cgi?id=482206
https://bugzilla.redhat.com/show_bug.cgi?id=1000510

Thanks.