Is CVE-2021-24221 in the CISA KEV catalog?

No. CVE-2021-24221 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-24221?

CVE-2021-24221 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2021-24221?

CVE-2021-24221 has an EPSS score of 1.89% (77th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-24221?

Upgrade quiz and survey master to 7.1.12 or later.

CVE & CISA-KEV Catalog

CVE-2021-24221

HIGHEPSS 77th pctl

8.8

CVSS v3

NVD

Description

The Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress plugin before 7.1.12 did not sanitise the result_id GET parameter on pages with the [qsm_result] shortcode without id attribute, concatenating it in a SQL statement and leading to an SQL injection. The lowest role allowed to use this shortcode in post or pages being author, such user could gain unauthorised access to the DBMS. If the shortcode (without the id attribute) is embed on a public page or post, then unauthenticated users could exploit the injection.

CWE-89SQL Injection

How to fix

Remediation Available

quiz and survey masterNVD

Affected:< 7.1.12Fixed in:7.1.12CVE-2021-24221derived 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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.89%probability of exploitation in 30 days

77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

Patch1

plugins.trac.wordpress.org

Exploit1

wpscan.com

Related Vulnerabilities

Other CWE-89 (SQL Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-3704	High	7.5	100%	-	Fix
CVE-2015-7297	High	7.5	100%	-	-
CVE-2024-29824	High	8.8	100%	KEV	Fix
CVE-2023-34362	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-7481	High	7.5	100%	KEV + Ransom	Fix
CVE-2024-29826	High	8.8	100%	-	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.