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.

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The integrated server of the ZGR TPS200 NG on its 2.00 firmware version and 1.01 hardware version, allows a remote attacker to perform actions with the permissions of a victim user. For this to happen, the victim user has to have an active session and triggers the malicious request.

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ZGR TPS200 NG in its 2.00 firmware version and 1.01 hardware version, allows a remote attacker with access to the web application and knowledge of the routes (URIs) used by the application, to access sensitive information about the system.

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In ZGR TPS200 NG 2.00 firmware version and 1.01 hardware version, the firmware upload process does not perform any type of restriction. This allows an attacker to modify it and re-upload it via web with malicious modifications, rendering the device unusable.

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ZGR TPS200 NG in its 2.00 firmware version and 1.01 hardware version, does not properly accept specially constructed requests. This allows an attacker with access to the network where the affected asset is located, to operate and change several parameters without having to be registered as a user on the web that owns the device.

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FEDORA-2022-8dcdfe7297

Packages in this update:

qemu-6.2.0-16.fc36

Update description:

vnc-clipboard: fix integer underflow in vnc_client_cut_text_ext (CVE-2022-3165) (rhbz#2129759)

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It was discovered that the SUNRPC RDMA protocol implementation in the Linux
kernel did not properly calculate the header size of a RPC message payload.
A local attacker could use this to expose sensitive information (kernel
memory). (CVE-2022-0812)

Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation
in the Linux kernel did not provide sufficient randomization when
calculating port offsets. An attacker could possibly use this to expose
sensitive information. (CVE-2022-1012, CVE-2022-32296)

Duoming Zhou discovered that race conditions existed in the timer handling
implementation of the Linux kernel’s Rose X.25 protocol layer, resulting in
use-after-free vulnerabilities. A local attacker could use this to cause a
denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux
kernel did not properly initialize memory pages to be used for shared
communication with the backend. A local attacker could use this to expose
sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the
Linux kernel did not properly initialize memory pages to be used for shared
communication with the backend. A local attacker could use this to expose
sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux
kernel incorrectly shared unrelated data when communicating with certain
backends. A local attacker could use this to cause a denial of service
(guest crash) or expose sensitive information (guest kernel memory).
(CVE-2022-33741, CVE-2022-33742)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in
the Linux kernel on ARM platforms contained a race condition in certain
situations. An attacker in a guest VM could use this to cause a denial of
service in the host OS. (CVE-2022-33744)

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FEDORA-EPEL-2022-a324bfef02

Packages in this update:

strongswan-5.9.8-1.el8

Update description:

Resolves CVE-2022-40617

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USN-5570-1 fixed a vulnerability in zlib. This update provides the
corresponding update for Ubuntu 22.04 LTS and Ubuntu 20.04 LTS.

Original advisory details:

Evgeny Legerov discovered that zlib incorrectly handled memory when
performing certain inflate operations. An attacker could use this issue
to cause zlib to crash, resulting in a denial of service, or possibly
execute arbitrary code.

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