Is CVE-2021-24351 in the CISA KEV catalog?

No. CVE-2021-24351 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-24351?

CVE-2021-24351 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2021-24351?

CVE-2021-24351 has an EPSS score of 2.48% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-24351?

Upgrade the plus addons for elementor to 4.1.12 or later.

CVE & CISA-KEV Catalog

CVE-2021-24351

MEDIUMEPSS 83th pctl

6.1

CVSS v3

NVD

Description

The theplus_more_post AJAX action of The Plus Addons for Elementor Page Builder WordPress plugin before 4.1.12 did not properly sanitise some of its fields, leading to a reflected Cross-Site Scripting (exploitable on both unauthenticated and authenticated users)

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

the plus addons for elementorNVD

Affected:< 4.1.12Fixed in:4.1.12CVE-2021-24351derived from NVD

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

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

2.48%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Exploit1

wpscan.com

Vendor Advisory1

theplusaddons.com

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	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.