Is CVE-2021-24867 in the CISA KEV catalog?

No. CVE-2021-24867 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-24867?

CVE-2021-24867 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-24867?

CVE-2021-24867 has an EPSS score of 18.88% (97th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-24867?

Upgrade ap companion to 1.0.7 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2021-24867

CRITICALEPSS 97th pctl

9.8

CVSS v3

NVD

Description

Numerous Plugins and Themes from the AccessPress Themes (aka Access Keys) vendor are backdoored due to their website being compromised. Only plugins and themes downloaded via the vendor website are affected, and those hosted on wordpress.org are not. However, all of them were updated or removed to avoid any confusion

CWE-912

How to fix

Remediation Available

ap companionNVD

Affected:< 1.0.7Fixed in:1.0.7CVE-2021-24867derived from NVD

mcontact buttonNVD

Affected:< 2.0.7Fixed in:2.0.7CVE-2021-24867derived from NVD

social reviewNVD

Affected:< 1.0.9Fixed in:1.0.9CVE-2021-24867derived from NVD

wp menu icons liteNVD

Affected:< 1.0.9Fixed in:1.0.9CVE-2021-24867derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

18.88%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

Exploit2

Related Vulnerabilities

Other CWE-912 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-20439	Critical	9.8	92%	KEV	Fix
CVE-2025-34117	Unscored	-	23%	-	-
CVE-2024-6045	High	8.8	6.3%	-	-
CVE-2020-16204	Critical	9.8	5.5%	-	-
CVE-2010-20103	Critical	9.8	4.8%	-	-
CVE-2020-12504	Critical	9.8	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 2024-11-21.