Is CVE-2023-3482 in the CISA KEV catalog?

No. CVE-2023-3482 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-3482?

CVE-2023-3482 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2023-3482?

CVE-2023-3482 has an EPSS score of 0.57% (43th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-3482?

Upgrade firefox on debian unstable to 115.0-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2023-3482

MEDIUM

6.5

CVSS v3

NVD

Description

When Firefox is configured to block storage of all cookies, it was still possible to store data in localstorage by using an iframe with a source of 'about:blank'. This could have led to malicious websites storing tracking data without permission. This vulnerability affects Firefox < 115.

CWE-862Missing Authorization

How to fix

Remediation Available

firefoxDebian

Fixed in:115.0-1CVE-2023-3482

firefoxUbuntu

Fixed in:115.0+build2-0ubuntu0.20.04.3USN-6201-1

DeveloperEditionWindows application

Affected:115.0Fixed in:115.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:115.0Fixed in:115.0Mozilla

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

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.57%probability of exploitation in 30 days

43rdpercentile

Moderate risk: more likely to be exploited than 43% of all known CVEs.

References

Vendor Advisory1

mozilla.org

Issue Tracking1

bugzilla.mozilla.org

Other references1

security.gentoo.org

Related Vulnerabilities

Other CWE-862 (Missing Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-39226	Critical	9.8	100%	KEV	Fix
CVE-2022-0543	Critical	10.0	100%	KEV	Fix
CVE-2021-21978	Critical	9.8	99%	-	Fix
CVE-2023-52163	High	8.8	96%	KEV	-
CVE-2022-1329	High	8.8	93%	-	-
CVE-2023-6875	Critical	9.8	90%	-	-

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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.