WordPress 4.9.2 Security and Maintenance Release is now available. This security release was issued by WordPress and is for all the previous versions. WordPress suggests strongly that you have this update applied to your WordPress website without delay and so do we.
An XSS vulnerability was discovered in the Flash fallback files in MediaElement, a library that is included with WordPress. Because the Flash files are no longer needed for most use cases, they have been removed from WordPress.
MediaElement has released a new version that contains a fix for the bug, and a WordPress plugin containing the fixed files is available in the plugin repository.
Ian Dunn, from the WordPress Development team, thanked the reporters of this issue for practicing responsible security disclosure: Enguerran Gillier and Widiz.
21 other bugs were fixed in WordPress 4.9.2. Some of which are listed below:
- The previous taxonomy-agnostic behavior of get_category_link() and category_description() was restored.
- Switching themes will now attempt to restore previous widget assignments, even when there are no sidebars to map.
Click here for more information about all the issues fixed in WordPress4.9.2.
You can download WordPress 4.9.2 Security and Maintenance Release or venture over to Dashboard > Updates and simply click “Update Now.”
Websites that support automatic background updates are already beginning to update to WordPress 4.9.2.
Dunn also thanked everyone who were involved in contributing WordPress 4.9.2.