CVE-2022-21663
On a multisite, users with Super Admin role can bypass explicit/additional hardening under certain conditions through object injection.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.69%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.69% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-74, CWE-502
- Affected
- wordpress/wordpress · debian/debian linux · fedoraproject/fedora
- Source
- security-advisories@github.com
References
- https://blog.sonarsource.com/wordpress-object-injection-vulnerability/Exploit, Third Party Advisory
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-jmmq-m8p8-332hThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/01/msg00019.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4UNEC63UU5GEU47IIR4RMTZAHNEOJG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DM6XPH3JN6V4NF4WBOJTOXZIVE6VKKE3/
- https://wordpress.org/news/2022/01/wordpress-5-8-3-security-release/Release Notes, Vendor Advisory
- https://www.debian.org/security/2022/dsa-5039Third Party Advisory
- https://blog.sonarsource.com/wordpress-object-injection-vulnerability/Exploit, Third Party Advisory
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-jmmq-m8p8-332hThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/01/msg00019.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4UNEC63UU5GEU47IIR4RMTZAHNEOJG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DM6XPH3JN6V4NF4WBOJTOXZIVE6VKKE3/
- https://wordpress.org/news/2022/01/wordpress-5-8-3-security-release/Release Notes, Vendor Advisory
- https://www.debian.org/security/2022/dsa-5039Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.