High (8.8). EPSS 1.2% chance of exploitation in the next 30 days.
The DOM implementation in Google Chrome before 48.0.2564.109 does not properly restrict frame-attach operations from occurring during or after frame-detach operations, which allows remote attackers to bypass the Same Origin Policy via a crafted web site, related to FrameLoader.cpp, HTMLFrameOwnerElement.h, LocalFrame.cpp, and WebLocalFrameImpl.cpp.
Severity
CVSS 3.0
8.8 high
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-31)