CVE-2022-43504: WordPress 6.0.3 Security Release

WordPress 6.0.3 is now available!

This release features several 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 6.0.3 is a short-cycle release. The next major release will be version 6.1 planned for November 1, 2022.

If you have sites that support automatic background updates, the update process will begin automatically.

You can download WordPress 6.0.3 from WordPress.org, or visit your WordPress Dashboard, click “Updates”, and then click “Update Now”.

For more information on this release, please visit the HelpHub site.

Security updates included in this release

The security team would like to thank the following people for responsibly reporting vulnerabilities, and allowing them to be fixed in this release.

• Stored XSS via wp-mail.php (post by email) – Toshitsugu Yoneyama of Mitsui Bussan Secure Directions, Inc. via JPCERT
• Open redirect in `wp_nonce_ays` – devrayn
• Sender’s email address is exposed in wp-mail.php – Toshitsugu Yoneyama of Mitsui Bussan Secure Directions, Inc. via JPCERT
• Media Library – Reflected XSS via SQLi – Ben Bidner from the WordPress security team and Marc Montpas from Automattic independently discovered this issue
• CSRF in wp-trackback.php – Simon Scannell
• Stored XSS via the Customizer – Alex Concha from the WordPress security team
• Revert shared user instances introduced in 50790 – Alex Concha and Ben Bidner from the WordPress security team
• Stored XSS in WordPress Core via Comment Editing – Third-party security audit and Alex Concha from the WordPress security team
• Data exposure via the REST Terms/Tags Endpoint – Than Taintor
• Content from multipart emails leaked – Thomas Kräftner
• SQL Injection due to improper sanitization in `WP_Date_Query` – Michael Mazzolini
• RSS Widget: Stored XSS issue – Third-party security audit
• Stored XSS in the search block – Alex Concha of the WP Security team
• Feature Image Block: XSS issue – Third-party security audit
• RSS Block: Stored XSS issue – Third-party security audit
• Fix widget block XSS – Third-party security audit

Thank you to these WordPress contributors

This release was led by Alex Concha, Peter Wilson, Jb Audras, and Sergey Biryukov at mission control. Thanks to Jonathan Desrosiers, Jorge Costa, Bernie Reiter and Carlos Bravo for their help on package updates.

WordPress 6.0.3 would not have been possible without the contributions of the following people. Their asynchronous coordination to deliver several fixes into a stable release is a testament to the power and capability of the WordPress community.

Alex Concha, Colin Stewart, Daniel Richards, David Baumwald, Dion Hulse, ehtis, Garth Mortensen, Jb Audras, John Blackbourn, John James Jacoby, Jonathan Desrosiers, Jorge Costa, Juliette Reinders Folmer, Linkon Miyan, martin.krcho, Matias Ventura, Mukesh Panchal, Paul Kevan, Peter Wilson, Robert AndersonRobin, Sergey Biryukov, Sumit Bagthariya, Teddy Patriarca, Timothy Jacobs, vortfu, and Česlav Przywara.

Thanks to @peterwilsoncc for proofreading.