CVE-2022-21663: Authenticated Object Injection in Multisites in WordPress
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/wordpressto a version that resolves this vulnerability.Fixed in 6.1.9+dfsg1-0+deb12u1Fixed in 6.8.7+dfsg1-0+deb13u1Fixed in 6.8.12+dfsg1-0+deb13u1Fixed in 7.1.4+dfsg1-1 - Upgrade
Upgrade
debian/wordpressto a version that resolves this vulnerability.Fixed in 5.8.3+dfsg1-1 - Upgrade
Upgrade
WordPressto a version that resolves this vulnerability.Fixed in 5.8.3 - Configuration
Keep WordPress auto-updates enabled; older affected versions are fixed via a security release back to 3.7.37.
WordPress auto-updates = enabled
Event History
Frequently Asked Questions
What is CVE-2022-21663?
CVE-2022-21663 is a vulnerability in WordPress that allows users with the Super Admin role to bypass explicit/additional hardening through object injection.
What is the severity of CVE-2022-21663?
The severity of CVE-2022-21663 is high with a severity value of 7.2.
How can I exploit CVE-2022-21663?
We do not encourage or provide information on exploiting vulnerabilities. It is important to prioritize the patching or updating of affected software.
How do I fix CVE-2022-21663?
To fix CVE-2022-21663, you should update your WordPress installation to version 5.8.3 or higher.
Where can I find more information about CVE-2022-21663?
You can refer to the following resources for more information: <br> - WordPress Security Release: [Link](https://wordpress.org/news/2022/01/wordpress-5-8-3-security-release/) <br> - WordPress GitHub Security Advisories: [Link](https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-jmmq-m8p8-332h) <br> - HackerOne Report: [Link](https://hackerone.com/reports/541469)