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CVE-2022-21663
Authenticated Object Injection in Multisites in WordPress
Medium6.6EPSS 3.8%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium6.6 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.8% · top 9.9% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: total
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.6.
Weakness
Affected products
- affected < 5.8.3
References (7)
- https://wordpress.org/news/2022/01/wordpress-5-8-3-security-release/ (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-jmmq-m8p8-332h (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-5039 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- FEDORA-2022-8472dd59ff (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2022-e37e1e6c7a (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [debian-lts-announce] 20220123 [SECURITY] [DLA 2884-1] wordpress security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://blog.sonarsource.com/wordpress-object-injection-vulnerability/ (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-21663)Record last updated .