Is CVE-2023-25730 in the CISA KEV catalog?

No. CVE-2023-25730 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-25730?

CVE-2023-25730 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2023-25730?

CVE-2023-25730 has an EPSS score of 0.55% (42th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-25730?

Upgrade firefox on debian unstable to 110.0-1 or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2023-25730

MEDIUM

5.4

CVSS v3

NVD

Description

A background script invoking requestFullscreen and then blocking the main thread could force the browser into fullscreen mode indefinitely, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.

CWE-1021

How to fix

Remediation Available

firefoxDebian

Fixed in:110.0-1CVE-2023-25730

firefoxUbuntu

Fixed in:110.0+build3-0ubuntu0.18.04.1USN-5880-1

Fixed in:110.0+build3-0ubuntu0.20.04.1USN-5880-1

thunderbirdUbuntu

Fixed in:1:102.8.0+build2-0ubuntu0.18.04.1USN-5943-1

Fixed in:1:102.8.0+build2-0ubuntu0.20.04.1USN-5943-1

Fixed in:1:102.8.0+build2-0ubuntu0.22.04.1USN-5943-1

Fixed in:1:102.8.0+build2-0ubuntu0.22.10.1USN-5943-1

DeveloperEditionWindows application

Affected:110.0Fixed in:110.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:110.0Fixed in:110.0Mozilla

Mozilla Firefox ESR (en-US)Windows application

Affected:102.8Fixed in:102.8Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:102.8Fixed in:102.8Mozilla

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

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.55%probability of exploitation in 30 days

42ndpercentile

Moderate risk: more likely to be exploited than 42% of all known CVEs.

References

Vendor Advisory4

Related Vulnerabilities

Other CWE-1021 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-21132	Critical	9.6	23%	-	Fix
CVE-2011-1244	Medium	5.8	15%	-	-
CVE-2013-2682	Medium	4.3	6.3%	-	-
CVE-2021-21139	Medium	6.5	4.7%	-	Fix
CVE-2017-11290	Medium	6.1	3.0%	-	-
CVE-2008-2716	Medium	5.0	3.0%	-	Fix

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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 2025-01-10.