CVE & CISA-KEV Catalog

CVE-2020-6810

MEDIUM
4.3
CVSS v3
NVD

Description

After a website had entered fullscreen mode, it could have used a previously opened popup to obscure the notification that indicates the browser is in fullscreen mode. Combined with spoofing the browser chrome, this could have led to confusing the user about the current origin of the page and credential theft or other attacks. This vulnerability affects Firefox < 74.

How to fix

Remediation Available
firefoxDebian
Fixed in:74.0-1CVE-2020-6810
firefoxUbuntu
Fixed in:74.0+build3-0ubuntu0.16.04.1USN-4299-1
Fixed in:74.0+build3-0ubuntu0.18.04.1USN-4299-1
DeveloperEditionWindows application
Affected:74.0Fixed in:74.0Mozilla
Mozilla Firefox (en-US)Windows application
Affected:74.0Fixed in:74.0Mozilla

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

0.97%probability of exploitation in 30 days
58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Related Vulnerabilities

Other CWE-290 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-4358Critical9.897%KEV-
CVE-2022-24112Critical9.896%KEVFix
CVE-2022-23131Critical9.196%KEV-
CVE-2021-29441High8.674%-Fix
CVE-2021-31195Medium6.574%-Fix
CVE-2020-7388Critical10.070%-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.