CVE-2022-21663

Authenticated Object Injection in Multisites in WordPress

Published Jan 6, 2022 CVSS 3.1 · 6.6 Medium EPSS 3.8% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2884-1 wordpress security update
Debian DSA Debian DSA DSA-5039-1 wordpress security update
EUVD EUVD EUVD-2022-26880 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Apr 22, 2025, 6:33 PM
Reserved
Nov 16, 2021, 12:00 AM
Status
Modified
Published
Jan 6, 2022, 11:15 PM
Modified
Jun 17, 2026, 4:26 AM