High severity · published Jan 6, 2022
CVE-2022-21663
WordPress is a free and open-source content management system written in PHP and paired with a MariaDB database
7.2
CVSS
3.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.7% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
WordPress · WordPress
before 5.8.3 · source: NVD
DL
Debian Linux · Debian
9.0; 10.0; 11.0 · source: NVD
FE
Fedora · Fedoraproject
34; 35 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-21663
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-21663
Exploit
https://blog.sonarsource.com/wordpress-object-injection-vulnerability/
Third Party Advisory
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-jmmq-m8p8-332h
Mailing List
https://lists.debian.org/debian-lts-announce/2022/01/msg00019.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4UNEC63UU5GEU47IIR4RMTZAHNEOJG/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DM6XPH3JN6V4NF4WBOJTOXZIVE6VKKE3/
Release Notes
https://wordpress.org/news/2022/01/wordpress-5-8-3-security-release/
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