Description
Insufficient policy enforcement in extensions in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass site isolation via a crafted Chrome Extension.
References (3)
Core 3
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html
Permissions Required, Third Party Advisory x_refsource_misc
https://crbug.com/1108126
Third Party Advisory x_refsource_misc
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21126
Scores
CVSS v3
6.5
EPSS
0.0873
EPSS Percentile
94.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Details
CWE
CWE-20
Status
published
Products (2)
google/chrome
< 88.0.4324.96
microsoft/edge_chromium
< 88.0.705.50
Published
Feb 09, 2021
Tracked Since
Feb 18, 2026