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WordPress 4.9.2 Security and Maintenance Release

WordPress 4.9.2 is now available. This is a security and maintenance release for all versions since WordPress 3.7. We strongly encourage you to update your sites immediately.

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.

Thank you to the reporters of this issue for practicing responsible security disclosureEnguerran Gillier and Widiz.

21 other bugs were fixed in WordPress 4.9.2. Particularly of note were:

  • JavaScript errors that prevented saving posts in Firefox have been fixed.
  • 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.

The Codex has more information about all of the issues fixed in 4.9.2, if you’d like to learn more.

Download WordPress 4.9.2 or venture over to Dashboard → Updates and click «Update Now.» Sites that support automatic background updates are already beginning to update automatically.

Thank you to everyone who contributed to WordPress 4.9.2:

0x6f0Aaron JorbinAndrea FerciaAndrew DuthieAndrew OzzBlobfolioBoone GorgesCaleb BurksCarolina NymarkchasewgChetan PrajapatiDion HulseHardik AmiparaionvvJason CaldwellJeffrey PaulJeremy FeltJoe McGilljohnschulzJuhi PatelKonstantin ObenlandMark JaquithNilambar SharmaPeter WilsonRachel BakerRinku YSergey Biryukov, and Weston Ruter.

Источник: https://wordpress.org/news/2018/01/wordpress-4-9-2-security-and-maintenance-release/

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