CVE & CISA-KEV Catalog

CVE-2021-21131

MEDIUMEPSS 94th pctl

6.5

CVSS v3

Description

Insufficient policy enforcement in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.

CWE-59Link Following CWE-434Unrestricted File Upload

How to fix

Remediation Available

chromiumDebian

Fixed in:88.0.4324.96-0.1CVE-2021-21131

Fixed in:88.0.4324.96-0.1CVE-2021-21131

Fixed in:88.0.4324.96-0.1CVE-2021-21131

Fixed in:88.0.4324.96-0.1CVE-2021-21131

Google ChromeWindows application

Affected:88.0.4324.96Fixed in:88.0.4324.96Google LLC

Google Chrome (EXE)Windows application

Affected:88.0.4324.96Fixed in:88.0.4324.96Google LLC

Google Chrome BetaWindows application

Affected:88.0.4324.96Fixed in:88.0.4324.96Google LLC

Google Chrome Beta (EXE)Windows application

Affected:88.0.4324.96Fixed in:88.0.4324.96Google LLC

Google Chrome CanaryWindows application

Affected:88.0.4324.96Fixed in:88.0.4324.96Google LLC

Google Chrome DevWindows application

Affected:88.0.4324.96Fixed in:88.0.4324.96Google LLC

Google Chrome Dev (EXE)Windows application

Affected:88.0.4324.96Fixed in:88.0.4324.96Google LLC

Microsoft EdgeWindows application

Affected:88.0.705.50Fixed in:88.0.705.50Microsoft Corporation

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

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

7.95%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Vendor Advisory1

chromereleases.googleblog.com

Third-Party Advisory2

Embed a live status badge for CVE-2021-21131

Markdown

[![CVE-2021-21131](https://tridentstack.com/cve/badge/CVE-2021-21131.svg)](https://tridentstack.com/cve/CVE-2021-21131)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-21131"><img src="https://tridentstack.com/cve/badge/CVE-2021-21131.svg" alt="CVE-2021-21131"></a>

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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.