The Web Store inline-installer implementation in the Extensions UI in Google Chrome before 49.0.2623.75 does not block installations upon deletion of an installation frame, which makes it easier for remote attackers to trick a user into believing that an installation request originated from the user’s next navigation target via a crafted web site.
googlechromereleases.blogspot.com/2016/03/stable-channel-update.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00014.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00015.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00018.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00028.html
www.debian.org/security/2016/dsa-3507
www.securityfocus.com/bid/84008
www.securitytracker.com/id/1035185
code.google.com/p/chromium/issues/detail?id=550047
codereview.chromium.org/1496033003
codereview.chromium.org/1554233005
security.gentoo.org/glsa/201603-09