Is CVE-2020-6808 in the CISA KEV catalog?

No. CVE-2020-6808 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-6808?

CVE-2020-6808 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2020-6808?

CVE-2020-6808 has an EPSS score of 1.04% (60th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-6808?

Upgrade firefox on debian unstable to 74.0-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2020-6808

MEDIUM

6.5

CVSS v3

NVD

Description

When a JavaScript URL (javascript:) is evaluated and the result is a string, this string is parsed to create an HTML document, which is then presented. Previously, this document's URL (as reported by the document.location property, for example) was the originating javascript: URL which could lead to spoofing attacks; it is now correctly the URL of the originating document. This vulnerability affects Firefox < 74.

CWE-290

How to fix

Remediation Available

firefoxDebian

Fixed in:74.0-1CVE-2020-6808

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

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.04%probability of exploitation in 30 days

60thpercentile

Moderate risk: more likely to be exploited than 60% of all known CVEs.

References

Vendor Advisory1

mozilla.org

Issue Tracking1

bugzilla.mozilla.org

Related Vulnerabilities

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

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-4358	Critical	9.8	97%	KEV	-
CVE-2022-24112	Critical	9.8	96%	KEV	Fix
CVE-2022-23131	Critical	9.1	96%	KEV	-
CVE-2021-29441	High	8.6	74%	-	Fix
CVE-2021-31195	Medium	6.5	74%	-	Fix
CVE-2020-7388	Critical	10.0	70%	-	Fix

Embed a live status badge for CVE-2020-6808

Markdown

[![CVE-2020-6808](https://tridentstack.com/cve/badge/CVE-2020-6808.svg)](https://tridentstack.com/cve/CVE-2020-6808)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-6808"><img src="https://tridentstack.com/cve/badge/CVE-2020-6808.svg" alt="CVE-2020-6808"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.