CVE & CISA-KEV Catalog

CVE-2021-21228

MEDIUM

4.3

CVSS v3

Description

Insufficient policy enforcement in extensions in Google Chrome prior to 90.0.4430.93 allowed an attacker who convinced a user to install a malicious extension to bypass navigation restrictions via a crafted Chrome Extension.

CWE-863Incorrect Authorization

How to fix

Remediation Available

chromiumDebian

Fixed in:90.0.4430.93-1CVE-2021-21228

Fixed in:90.0.4430.93-1CVE-2021-21228

Fixed in:90.0.4430.93-1CVE-2021-21228

Fixed in:90.0.4430.93-1CVE-2021-21228

Google ChromeWindows application

Affected:90.0.4430.93Fixed in:90.0.4430.93Google LLC

Google Chrome (EXE)Windows application

Affected:90.0.4430.93Fixed in:90.0.4430.93Google LLC

Google Chrome BetaWindows application

Affected:90.0.4430.93Fixed in:90.0.4430.93Google LLC

Google Chrome Beta (EXE)Windows application

Affected:90.0.4430.93Fixed in:90.0.4430.93Google LLC

Google Chrome CanaryWindows application

Affected:90.0.4430.93Fixed in:90.0.4430.93Google LLC

Google Chrome DevWindows application

Affected:90.0.4430.93Fixed in:90.0.4430.93Google LLC

Google Chrome Dev (EXE)Windows application

Affected:90.0.4430.93Fixed in:90.0.4430.93Google LLC

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Exploit Intelligence

1.06%probability of exploitation in 30 days

61stpercentile

Moderate risk: more likely to be exploited than 61% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory2

Other references3

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.