Cross-site request forgery (CSRF) vulnerability in Roundcube Webmail before 1.1.5 allows remote attackers to hijack the authentication of users for requests that download attachments and cause a denial of service (disk consumption) via unspecified vectors.
https://github.com/roundcube/roundcubemail/wiki/Changelog#release-115
https://github.com/roundcube/roundcubemail/releases/tag/1.1.5
https://github.com/roundcube/roundcubemail/issues/4957
https://github.com/roundcube/roundcubemail/commit/699af1e5206ed9114322adaa3c25c1c969640a53
https://github.com/roundcube/roundcubemail/commit/4a408843b0ef816daf70a472a02b78cd6073a4d5
http://www.securityfocus.com/bid/92654
http://www.openwall.com/lists/oss-security/2016/04/23/4
http://lists.opensuse.org/opensuse-updates/2016-08/msg00079.html