CVE-2022-21663
Authenticated Object Injection in Multisites in WordPress
7.2
HIGH
CVSS 3.1
EPSS 0.31%
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.
How to fix CVE-2022-21663
To remediate CVE-2022-21663, upgrade the affected package to a fixed version below.
- —upgrade to 5.8.3 or later
- —upgrade to 5.8.3 or later
- —upgrade to 5.7.5+dfsg1-0+deb11u1 or later
Is CVE-2022-21663 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 5.8.3
- from 0, < 5.8.3
- from 0, < 5.7.5+dfsg1-0+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |