Is CVE-2021-24955 in the CISA KEV catalog?

No. CVE-2021-24955 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-24955?

CVE-2021-24955 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2021-24955?

CVE-2021-24955 has an EPSS score of 0.97% (58th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2021-24955

Q: How do I fix CVE-2021-24955?

Upgrade user registration\, login form\, user profile \& membership to 3.2.3 or later.

MEDIUM

6.1

CVSS v3

NVD

Description

The User Registration, Login Form, User Profile & Membership WordPress plugin before 3.2.3 does not escape the data parameter of the pp_get_forms_by_builder_type AJAX action before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

user registration\, login form\, user profile \& membershipNVD

Affected:< 3.2.3Fixed in:3.2.3CVE-2021-24955derived 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

0.97%probability of exploitation in 30 days

58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Patch1

plugins.trac.wordpress.org

Exploit1

wpscan.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.