Is CVE-2022-21663 in the CISA KEV catalog?

No. CVE-2022-21663 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-21663?

CVE-2022-21663 has a CVSS v3 base score of 6.6 (MEDIUM).

What is the EPSS score for CVE-2022-21663?

CVE-2022-21663 has an EPSS score of 3.69% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-21663?

Upgrade wordpress on debian 11 to 5.7.5+dfsg1-0+deb11u1 or later.

CVE & CISA-KEV Catalog

CVE-2022-21663

MEDIUMEPSS 88th pctl

6.6

CVSS v3

NVD

Description

WordPress is a free and open-source content management system written in PHP and paired with a MariaDB database. On a multisite, users with Super Admin role can bypass explicit/additional hardening under certain conditions through object injection. This has been patched in WordPress version 5.8.3. Older affected versions are also fixed via security release, that go back till 3.7.37. We strongly recommend that you keep auto-updates enabled. There are no known workarounds for this issue.

CWE-74Injection CWE-502Deserialization of Untrusted Data

How to fix

Remediation Available

wordpressDebian

Fixed in:5.7.5+dfsg1-0+deb11u1CVE-2022-21663

Fixed in:5.8.3+dfsg1-1CVE-2022-21663

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 ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.69%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Exploit1

blog.sonarsource.com

Vendor Advisory1

wordpress.org

Third-Party Advisory3

Other references2

Related Vulnerabilities

Other CWE-74 (Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2013-2251	Critical	9.8	100%	KEV	Fix
CVE-2023-22527	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-2725	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2022-35914	Critical	9.8	100%	KEV	-
CVE-2019-17558	High	7.5	99%	KEV	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.