CVE-2022-21663

MEDIUM

Wordpress < 5.8.3 - Insecure Deserialization

Title source: rule

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.

References (7)

[Exploit, Third Party Advisory] 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, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2022/01/msg00019.html

[Release Notes, Vendor Advisory] https://wordpress.org/news/2022/01/wordpress-5-8-3-security-release/

[Third Party Advisory] https://www.debian.org/security/2022/dsa-5039

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4UNEC63UU5GEU47IIR4RMTZAHNEOJG/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DM6XPH3JN6V4NF4WBOJTOXZIVE6VKKE3/

Scores

CVSS v3 6.6

EPSS 0.0031

EPSS Percentile 53.8%

Attack Vector NETWORK

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

Classification

CWE

CWE-502 CWE-74

Status published

Affected Products (6)

wordpress/wordpress < 5.8.3

debian/debian_linux

debian/debian_linux

debian/debian_linux

fedoraproject/fedora

fedoraproject/fedora

Timeline

Published Jan 06, 2022

Tracked Since Feb 18, 2026