WordPress 5.4.3
13 November 2020
WordPress version 5.4.3 is now available (security release).
Upgrading to WordPress 5.4.3
WordPress 5.4.3 can be upgraded to (or installed) using any of Installatron's products. Use Installatron's optional Automatic Update feature to automatically apply WordPress updates as new versions are released, or use Installatron's Clone feature to duplicate an existing WordPress install to test the 5.4.3 upgrade prior to applying it live. Get started managing your WordPress installations with Installatron
What's New in WordPress 5.4.3
Security
- Props to Sam Thomas (jazzy2fives) for finding an XSS issue where authenticated users with low privileges are able to add JavaScript to posts in the block editor.
- Props to Luigi – (gubello.me) for discovering an XSS issue where authenticated users with upload permissions are able to add JavaScript to media files.
- Props to Ben Bidner of the WordPress Security Team for finding an open redirect issue in wp_validate_redirect().
- Props to Nrimo Ing Pandum for finding an authenticated XSS issue via theme uploads.
- Props to Simon Scannell of RIPS Technologies for finding an issue where set-screen-option can be misused by plugins leading to privilege escalation.
- Props to Carolina Nymark for discovering an issue where comments from password-protected posts and pages could be displayed under certain conditions.