This security release features four security fixes. Because this is a security release, it is recommended that you update your sites immediately. All versions since WordPress 3.7 have also been updated.
WordPress 5.8.3 is a short-cycle security release. The next major release will be version 5.9, which is already in the Release Candidate stage.
You can update to WordPress 5.8.3 by downloading from WordPress.org or visiting your Dashboard → Updates and clicking Update Now.
If you have sites that support automatic background updates, they’ve already started the update process.
Security Updates
Four security issues affect WordPress versions between 3.7 and 5.8. If you haven’t yet updated to 5.8, all WordPress versions since 3.7 have also been updated to fix the following security issue (except where noted otherwise):
Props to Karim El Ouerghemmi and Simon Scannell of SonarSource for disclosing an issue with stored XSS through post slugs.Props to Simon Scannell of SonarSource for reporting an issue with Object injection in some multisite installations.Props to ngocnb and khuyenn from GiaoHangTietKiem JSC for working with Trend Micro Zero Day Initiative on reporting a SQL injection vulnerability in WP_Query.Props to Ben Bidner from the WordPress security team for reporting a SQL injection vulnerability in WP_Meta_Query (only relevant to versions 4.1-5.8).
Thank you to all of the reporters above for privately disclosing the vulnerabilities. This gave the security team time to fix the vulnerabilities before WordPress sites could be attacked. Thank you to the members of the WordPress security team for implementing these fixes in WordPress.
For more information, check out the 5.8.3 HelpHub documentation page.
Thanks and props!
The 5.8.3 release was led by @desrosj and @circlecube.
In addition to the security researchers and release squad members mentioned above, thank you to everyone who helped make WordPress 5.8.3 happen:
Alex Concha, Dion Hulse, Dominik Schilling, ehtis, Evan Mullins, Jake Spurlock, Jb Audras, Jonathan Desrosiers, Ian Dunn, Peter Wilson, Sergey Biryukov, vortfu, and zieladam.
More Stories
firefox-138.0.3-1.fc40
FEDORA-2025-cc8d7b6c6d Packages in this update: firefox-138.0.3-1.fc40 Update description: New upstream update (138.0.3) Update to latest upstream (138.0) Read More
USN-7506-4: Linux kernel (Xenial HWE) vulnerabilities
Demi Marie Obenour and Simon Gaiser discovered that several Xen para- virtualization device frontends did not properly restrict the access...
xen-4.19.2-4.fc42
FEDORA-2025-b3d59fca78 Packages in this update: xen-4.19.2-4.fc42 Update description: x86: Indirect Target Selection [XSA-469, CVE-2024-28956] Read More
perl-Mojolicious-9.39-1.fc41
FEDORA-2025-c38fd06bec Packages in this update: perl-Mojolicious-9.39-1.fc41 Update description: Mojolicious versions from 0.999922 through 9.39 for Perl uses a hard coded...
perl-Mojolicious-9.39-1.fc40
FEDORA-2025-0e7fe5534f Packages in this update: perl-Mojolicious-9.39-1.fc40 Update description: Mojolicious versions from 0.999922 through 9.39 for Perl uses a hard coded...
znc-1.8.2-16.el8
FEDORA-EPEL-2025-ad4c7abaa9 Packages in this update: znc-1.8.2-16.el8 Update description: CVE-2024-39844 Read More