Release: WordPress 4.7.1

WordPress, the open-source blogging and CMS platform, has released version 4.7.1, a security update to version 4.7.

The update fixes eight (8) major security issues as well as sixty-two (62) other various bugs found in 4.7.

  1. Remote code execution (RCE) in PHPMailer – No specific issue appears to affect WordPress or any of the major plugins we investigated but, out of an abundance of caution, we updated PHPMailer in this release.
  2. The REST API exposed user data for all users who had authored a post of a public post type. WordPress 4.7.1 limits this to only post types which have specified that they should be shown within the REST API.
  3. Cross-site scripting (XSS) via the plugin name or version header on update-core.php.
  4. Cross-site request forgery (CSRF) bypass via uploading a Flash file.
  5. Cross-site scripting (XSS) via theme name fallback.
  6. Post via email checks mail.example.com if default settings aren’t changed.
    A cross-site request forgery (CSRF) was discovered in the accessibility mode of widget editing.
  7. Weak cryptographic security for multisite activation key.

It is strongly encouraged that you update your version of WordPress as soon as possible to avoid possible exploitations. As always, I also encourage everyone to read through the changelog to see what was fixed or what could be a potential issue in the future.

WordPress 4.7.1 Security and Maintenance Release

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