Is CVE-2024-2020 in the CISA KEV catalog?

No. CVE-2024-2020 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-2020?

CVE-2024-2020 has a CVSS v3 base score of 7.2 (HIGH).

What is the EPSS score for CVE-2024-2020?

CVE-2024-2020 has an EPSS score of 0.58% (43th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-2020?

Upgrade calculated fields form to 5.1.57 or later.

CVE & CISA-KEV Catalog

CVE-2024-2020

HIGH

7.2

CVSS v3

NVD

Description

The Calculated Fields Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the form page href parameter in all versions up to, and including, 5.1.56 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the professional version or higher.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

calculated fields formNVD

Affected:< 5.1.57Fixed in:5.1.57CVE-2024-2020derived 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 InteractionNone

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.58%probability of exploitation in 30 days

43rdpercentile

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

References

Third-Party Advisory1

wordfence.com

Release Notes1

wordpress.org

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 2026-04-08.