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                             CERT-Renater

                 Note d'Information No. 2021/VULN225
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DATE                : 16/04/2021

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running WordPress versions prior
                               to 5.7.1.

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https://wordpress.org/news/2021/04/wordpress-5-7-1-security-and-maintenance-release/
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WordPress 5.7.1 Security and Maintenance Release
Posted April 15, 2021 by Peter Wilson. Filed under Releases, Security.

WordPress 5.7.1 is now available!

This security and maintenance release features 26 bug fixes in addition
to two security fixes. Because this is a security release, it is
recommended that you update your sites immediately. All versions since
WordPress 4.7 have also been updated.

WordPress 5.7.1 is a short-cycle security and maintenance release. The
next major release will be version 5.8.

You can download WordPress 5.7.1 by downloading from WordPress.org, or
visit your Dashboard → Updates and click Update Now.

If you have sites that support automatic background updates, they’ve
already started the update process.


Security Updates

Two security issues affect WordPress versions between 4.7 and 5.7. If
you haven’t yet updated to 5.7, all WordPress versions since 4.7 have
also been updated to fix the following security issues:

    Thank you SonarSource for reporting an XXE vulnerability within the
media library affecting PHP 8.

    Thanks Mikael Korpela for reporting a data exposure vulnerability
within the REST API.

Thank you to all of the reporters for privately disclosing the
vulnerabilities. This gave the security team time to fix the
vulnerabilities before WordPress sites could be attacked.

Props to Adam Zielinski, Pascal Birchler, Peter Wilson, Juliette
Reinders Folmer, Alex Concha, Ehtisham Siddiqui, Timothy Jacobs and the
WordPress security team for their work on these issues.

For more information, browse the full list of changes on Trac, or check
out the version 5.7.1 HelpHub documentation page.


Thanks and props!

The 5.7.1 release was led by @peterwilsoncc and @audrasjb.

In addition to the security researchers and release squad members
mentioned above, thank you to everyone who helped make WordPress 5.7.1
happen:

99w, Adam Silverstein, Andrew Ozz, annalamprou, anotherdave, Ari
Stathopoulos, Ayesh Karunaratne, bobbingwide, Brecht, Daniel Richards,
David Baumwald, dkoo, Dominik Schilling, dragongate, eatsleepcode, Ella
van Durpe, Erik, Fabian Pimminger, Felix Arntz, Florian TIAR, gab81, Gal
Baras, Geoffrey, George Mamadashvili, Glen Davies, Greg Ziółkowski,
grzim, Ipstenu (Mika Epstein), Jake Spurlock, Jayman Pandya, Jb Audras,
Joen A., Johan Jonk Stenström, Johannes Kinast, John Blackbourn, John
James Jacoby, Jonathan Desrosiers, Josee Wouters, Joy, k3nsai, Kelly
Choyce-Dwan, Kerry Liu, Marius L. J., Mel Choyce-Dwan, Mikhail Kobzarev,
mmuyskens, Mukesh Panchal, nicegamer7, Otshelnik-Fm, Paal Joachim
Romdahl, palmiak, Pascal Birchler, Peter Wilson, pwallner, Rachel Baker,
Riad Benguella, Rinat Khaziev, Robert Anderson, Roger Theriault, Sergey
Biryukov, Sergey Yakimov, SirStuey, stefanjoebstl, Stephen Bernhardt,
Sumit Singh, Sybre Waaijer, Synchro, Terri Ann, tigertech, Timothy
Jacobs, tmatsuur, TobiasBg, Tonya Mork, Toru Miki, Ulrich, and Vlad T.



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