Security Blog
Security Blog
Posted By Gregory

WordPress 4.7.3 – six security issues has been fixed

Hi guys! It's time to update! WordPress 4.7.3 is now available.


This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.7.2 and earlier are affected by six security issues:

  1. Cross-site scripting (XSS) via media file metadata.  Reported by Chris Andrè Dale, Yorick Koster, and Simon P. Briggs.
  2. Control characters can trick redirect URL validation.  Reported by Daniel Chatfield.
  3. Unintended files can be deleted by administrators using the plugin deletion functionality.  Reported by xuliang.
  4. Cross-site scripting (XSS) via video URL in YouTube embeds.  Reported by Marc Montpas.
  5. Cross-site scripting (XSS) via taxonomy term names.  Reported by Delta.
  6. Cross-site request forgery (CSRF) in Press This leading to excessive use of server resources.  Reported by Sipke Mellema.

In addition to the security issues above, 12 bugs in REST API has been fixed. Yes, you have they again, 12 new reasons why you should restrict access or disable REST API completely as I recommend earlier.

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I’m a self-employed developer who builds software products and services using WordPress for more that seven years. I enjoy partnering with others for interesting and challenging projects. If you’re interested in, feel free to contact me.

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