High (8.8) in google chrome. EPSS 1.5% chance of exploitation in the next 30 days.
WebKit/Source/core/loader/FrameLoader.cpp in Blink, as used in Google Chrome before 52.0.2743.82, does not disable frame navigation during a detach operation on a DocumentLoader object, which allows remote attackers to bypass the Same Origin Policy via a crafted web site.
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
1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-11-01)