MEDIUM
The Extensions subsystem in Google Chrome before 48.0.2564.109 does not prevent use of the Object.defineProperty method to override intended extension behavior, which allows remote attackers to bypass the Same Origin Policy via crafted JavaScript code.
http://googlechromereleases.blogspot.com/2016/02/stable-channel-update_9.html
http://lists.opensuse.org/opensuse-updates/2016-02/msg00104.html
http://lists.opensuse.org/opensuse-updates/2016-02/msg00119.html
http://rhn.redhat.com/errata/RHSA-2016-0241.html
http://www.debian.org/security/2016/dsa-3486
http://www.securityfocus.com/bid/83125
http://www.securitytracker.com/id/1035183
https://code.google.com/p/chromium/issues/detail?id=546677
Source: MITRE
Published: 2016-02-14
Updated: 2018-10-30
Type: CWE-264
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8
Severity: HIGH