WordPress 4.3.1 Security and Maintenance Release

Posted September 15, 2015 by Samuel Sidler. Filed under Releases, Security.

WordPress 4.3.1 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

This release addresses three issues, including two cross-site scripting vulnerabilities and a potential privilege escalation.

  • WordPress versions 4.3 and earlier are vulnerable to a cross-site scripting vulnerability when processing shortcode tags (CVE-2015-5714). Reported by Shahar Tal and Netanel Rubin of Check Point.
  • A separate cross-site scripting vulnerability was found in the user list table. Reported by Ben Bidner of the WordPress security team.
  • Finally, in certain cases, users without proper permissions could publish private posts and make them sticky (CVE-2015-5715). Reported by Shahar Tal and Netanel Rubin of Check Point.

Our thanks to those who have practiced responsible disclosure of security issues.

WordPress 4.3.1 also fixes twenty-six bugs. For more information, see the release notes or consult the list of changes.

Download WordPress 4.3.1 or venture over to Dashboard → Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.3.1.

Thanks to everyone who contributed to 4.3.1:

Adam Silverstein, Andrea FerciaAndrew Ozz, Boone Gorges, Brandon Kraft, chriscct7, Daisuke Takahashi, Dion Hulse, Dominik Schilling, Drew Jaynes, dustinbolton, Gary Pendergast, hauvong, James Huff, Jeremy Felt, jobst, Marin Atanasov, Nick Halsey, nikeo, Nikolay Bachiyski, Pascal Birchler, Paul Ryan, Peter Wilson, Robert Chapin, Samuel Wood, Scott Taylor, Sergey Biryukov, tmatsuur, Tracy Levesque, Umesh Nevase, vortfu, welcher, Weston Ruter

See Also:

Want to follow the code? There’s a development P2 blog and you can track active development in the Trac timeline that often has 20–30 updates per day.

Want to find an event near you? Check out the WordCamp schedule and find your local Meetup group!

For more WordPress news, check out the WordPress Planet or subscribe to the WP Briefing podcast.


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