Vulnerability Details : CVE-2021-21127
Insufficient policy enforcement in extensions in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass content security policy via a crafted Chrome Extension.
Products affected by CVE-2021-21127
- cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-21127
0.38%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21127
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
References for CVE-2021-21127
-
https://crbug.com/1115590
1115590 - CSP Bypass via Chrome ExtensionExploit;Issue Tracking;Vendor Advisory
-
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21127
CVE-2021-21127 - Security Update Guide - Microsoft - Chromium CVE-2021-21127: Insufficient policy enforcement in extensionsThird Party Advisory
-
https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html
Chrome Releases: Stable Channel Update for DesktopRelease Notes;Vendor Advisory
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