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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| WordPress | wordpress-develop | < 5.8.3 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | wordpress | 5.8.3+dfsg1-1 | — |
| Debian 13 | wordpress | 5.8.3+dfsg1-1 | — |
| Debian 12 | wordpress | 5.8.3+dfsg1-1 | — |
| Debian 11 | wordpress | 5.7.5+dfsg1-0+deb11u1 | DSA-5039-1 |
| Debian 10 | wordpress | 5.0.15+dfsg1-0+deb10u1 | DSA-5039-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 9 | wordpress | 4.7.22+dfsg-0+deb9u1 | DLA-2884-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | wordpress | No fix yet | — |
| Ubuntu 18.04 LTS | wordpress | No fix yet | — |
| Ubuntu 16.04 LTS | wordpress | No fix yet | — |
Advisories 2
- DSA-5039-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2884-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://wordpress.org/news/2022/01/wordpress-5-8-3-security-release/
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-jmmq-m8p8-332h
- DSA-5039 vendor-advisory
- FEDORA-2022-8472dd59ff vendor-advisory
- FEDORA-2022-e37e1e6c7a vendor-advisory
- [debian-lts-announce] 20220123 [SECURITY] [DLA 2884-1] wordpress security update mailing-list
- https://blog.sonarsource.com/wordpress-object-injection-vulnerability/