Authenticated Object Injection in Multisites in WordPress
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.6epss 3.7%
exploitation probability
3.7%top 11% of all CVEs
observed exploitation
nono source reports it
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/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
WordPress · wordpress-developReferences
https://blog.sonarsource.com/wordpress-object-injection-vulnerability/https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-jmmq-m8p8-332hhttps://lists.debian.org/debian-lts-announce/2022/01/msg00019.htmlhttps://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/https://www.debian.org/security/2022/dsa-5039