News — WordPress 5.5.2 Security and Maintenance Release —


WordPress 5.5.2 is now to be had!

This safety and upkeep unencumber options 14 bug fixes along with 10 safety fixes. As a result of this can be a safety unencumber, it’s endorsed that you just replace your websites right away. All variations since WordPress 3.7 have additionally been up to date.

WordPress 5.5.2 is a short-cycle safety and upkeep unencumber. The following main unencumber can be model 5.6.

You’ll obtain WordPress 5.5.2 through downloading from, or seek advice from your Dashboard → Updates and click on Replace Now.

You probably have websites that make stronger automated background updates, they’ve already began the replace procedure.

Safety Updates

Ten safety problems impact WordPress variations 5.5.1 and previous. In case you haven’t but up to date to five.5, all WordPress variations since 3.7 have additionally been up to date to mend the next safety problems:

  • Props to Alex Concha of the WordPress Safety Group for his or her paintings in hardening deserialization requests.
  • Props to David Binovec on a repair to disable unsolicited mail embeds from disabled websites on a multisite community.
  • Because of Marc Montas from Sucuri for reporting a subject matter that might result in XSS from world variables.
  • Because of Justin Tran who reported a subject matter surrounding privilege escalation in XML-RPC. He additionally discovered and disclosed a subject matter round privilege escalation round put up commenting by the use of XML-RPC.
  • Props to Omar Ganiev who reported one way the place a DoS assault may result in RCE.
  • Because of Karim El Ouerghemmi from RIPS who disclosed a solution to retailer XSS in put up slugs.
  • Because of Slavco for reporting, and affirmation from Karim El Ouerghemmi, a solution to bypass safe meta that might result in arbitrary record deletion.
  • Because of Erwan LR from WPScan who responsibly disclosed one way that might result in CSRF.
  • And a different because of @zieladam who used to be integral in lots of the releases and patches all over this unencumber.

Thanks to the entire newshounds for privately disclosing the vulnerabilities. This gave the safety group time to mend the vulnerabilities prior to WordPress websites might be attacked.

For more info, browse the full list of changes on Trac, or take a look at the version 5.5.2 HelpHub documentation page.

Thank you and props!

The 5.5.2 unencumber used to be led through @whyisjake and the next unencumber squad: @audrasjb, @davidbaumwald, @desrosj, @johnbillion, @metalandcoffee, @noisysocks @planningwrite, @sarahricker and @sergeybiryukov.

Along with the safety researchers and unencumber squad individuals discussed above, thanks to everybody who helped make WordPress 5.5.2 occur:

Aaron Jorbin, Alex Concha, Amit Dudhat, Andrey “Rarst” Savchenko, Andy Fragen, Ayesh Karunaratne, bridgetwillard, Daniel Richards, David Baumwald, Davis Shaver, dd32, Florian TIAR, Hareesh, Hugh Lashbrooke, Ian Dunn, Igor Radovanov, Jake Spurlock, Jb Audras, John Blackbourn, Jonathan Desrosiers, Jon Brown, Joy, Juliette Reinders Folmer, kellybleck, mailnew2ster, Marcus Kazmierczak, Marius L. J., Milan Dinić, Mohammad Jangda, Mukesh Panchal, Paal Joachim Romdahl, Peter Wilson, Regan Khadgi, Robert Anderson, Sergey Biryukov, Sergey Yakimov, Syed Balkhi, szaqal21, Tellyworth, Timi Wahalahti, Timothy Jacobs, Towhidul I. Chowdhury, Vinayak Anivase, and zieladam.

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