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                               CERT-Renater

                     Note d'Information No. 2023/VULN402

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DATE                : 16/10/2023

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running WordPress versions prior to 6.3.2.

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https://wordpress.org/news/2023/10/wordpress-6-3-2-maintenance-and-security-release/
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WordPress 6.3.2 – Maintenance and Security release

This security and maintenance release features 19 bug fixes on Core,
22 bug fixes for the Block Editor, and 8 security fixes.

WordPress 6.3.2 is a short-cycle release. You can review a summary
of the maintenance updates in this release by reading the Release
Candidate announcement. Because this is a security release, it is
recommended that you update your sites immediately. Backports are
also available for other major WordPress releases, 4.1 and later.

The next major release will be version 6.4 planned for 7 November 2023.

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

You can download WordPress 6.3.2 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:

     Marc Montpas of Automattic for finding a potential disclosure
of user email addresses.
     Marc Montpas of Automattic for finding an RCE POP Chains
vulnerability.
     Rafie Muhammad and Edouard L of Patchstack along with a
WordPress commissioned third-party audit for each independently
identifying a XSS issue in the post link navigation block.
     Jb Audras of the WordPress Security Team and Rafie Muhammad
of Patchstack for each independently discovering an issue where
comments on private posts could be leaked to other users.
     John Blackbourn (WordPress Security Team), James Golovich,
J.D Grimes, Numan Turle, WhiteCyberSec for each independently
identifying a way for logged-in users to execute any shortcode.
     mascara7784 and a third-party security audit for identifying
a XSS vulnerability in the application password screen.
     Jorge Costa of the WordPress Core Team for identifying XSS
vulnerability in the footnotes block.
     s5s and raouf_maklouf for independently identifying a cache
poisoning DoS vulnerability.

Thank you to these WordPress contributors

This release was led by Joe McGill, Aaron Jorbin and Jb Audras,
with the help of David Baumwald on mission control.

WordPress 6.3.2 would not have been possible without the
contributions of the following people. Their asynchronous
coordination to deliver maintenance and security fixes into
a stable release is a testament to the power and capability
of the WordPress community.

Aaron Jorbin, Aki Hamano, Akihiro Harai, Alex Concha, Andrew Ozz,
Andy Fragen, Anthony Burchell, Aurooba Ahmed, Ben Dwyer, Carolina
Nymark, Colin Stewart, Corey Worrell, Damon Cook, David Biňovec,
David E. Smith, Dean Sas, Dennis Snell, Dhruvi Shah, Dion Hulse,
Ehtisham S., Felix Arntz, George Mamadashvili, Greg Ziółkowski,
Huzaifa Al Mesbah, Isabel Brison, Jb Audras, Joe Hoyle, Joe McGill,
John Blackbourn, John James Jacoby, Jonathan Desrosiers, Jonny
Harris, Jorge Costa, Justin Tadlock, K. Adam White, Kim Coleman,
LarryWEB, Liam Gladdy, Mehedi Hassan, Miguel Fonseca, Mukesh Panchal,
Nicole Furlan, Paul Biron, Paul Kevan, Peter Wilson,
Pooja N Muchandikar, Rajin Sharwar, Ryan McCue, Sal Ferrarello,
Sergey Biryukov, Shail Mehta, Stephen Bernhardt, Teddy Patriarca,
Timothy Jacobs, Weston Ruter, Zunaid Amin, ahardyjpl, beryldlg,
floydwilde, jastos, martin.krcho, masteradhoc, petitphp, ramonopoly,
vortfu, zieladam


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