Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2023.2867
WordPress 6.2.1 Maintenance & Security Release
17 May 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: WordPress
Publisher: WordPress
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Resolution: Patch/Upgrade
Original Bulletin:
https://wordpress.org/news/2023/05/wordpress-6-2-1-maintenance-security-release/
Comment: CVSS (Max): None available when published
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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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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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