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                             CERT-Renater

                  Note d'Information No. 2023/VULN196

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DATE                : 17/05/2023

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running WordPress versions prior to 6.2.1.

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https://wordpress.org/news/2023/05/wordpress-6-2-1-maintenance-security-release/
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WordPress 6.2.1 Maintenance & Security Release

WordPress 6.2.1 is now available!

This minor release features 20 bug fixes in Core and 10 bug fixes
for the block editor . You can review a summary of the maintenance
updates in this release by reading the Release Candidate announcement .

This release also features several security fixes. Because this is a
security release, it is recommended that you update your sites
immediately. All versions since WordPress 4.1 have also been updated.

WordPress 6.2.1 is a short-cycle release. The next major release will
be version 6.3 planned for August 2023.

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

You can download WordPress 6.2.1 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.

   o Block themes parsing shortcodes in user generated data; thanks
     to Liam Gladdy of WP Engine for reporting this issue
   o A CSRF issue updating attachment thumbnails; reported by John
     Blackbourn of the WordPress security team
   o A flaw allowing XSS via open embed auto discovery; reported
     independently by Jakub Zoczek of Securitum and during a third
     party security audit
   o Bypassing of KSES sanitization in block attributes for low
     privileged users; discovered during a third party security audit.
   o A path traversal issue via translation files; reported
     independently by Ramuel Gall and during a third party
     security audit.

Thank you to these WordPress contributors

This release was led by Jb Audras , George Mamadashvili , Sergey
Biryukov and Peter Wilson .

WordPress 6.2.1 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.

Adam Silverstein , Aki Hamano , amin , Andrew Ozz , Andrew Serong ,
Andre , Ari Stathopoulos , Birgit Pauli-Haack , Chirag Rathod , Colin
Stewart , Daniel Richards , David Baumwald , David Binovec , Dennis
Snell , devshagor , Dhrumil Kumbhani , Dominik Schilling , Ella ,
George Mamadashvili , Isabel Brison , Jb Audras , Joe Dolson ,
Joen A. , John Blackbourn , Jonathan Desrosiers , JuanMa Garrido ,
Juliette Reinders Folmer , Kai Hao , Kailey (trepmal) , Marc ,
Marine EVAIN , Matt Wiebe , Mukesh Panchal , nendeb , Nick Diego ,
nickpap , Nik Tsekouras , Pavan Patil , Peter Wilson , pouicpouic ,
Riad Benguella , Ryan Welcher , Scott Reilly , Sergey Biryukov ,
Stephen Bernhardt , tmatsuur , TobiasBg , Tonya Mork , Ugyen Dorji ,
Weston Ruter , and zieladam .


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