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WordPress 4.8.3 Security Release

Posted October 31, 2017 by Gary Pendergast. Filed under Releases, Security.

WordPress 4.8.3 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.8.2 and earlier are affected by an issue where $wpdb->prepare() can create unexpected and unsafe queries leading to potential SQL injection (SQLi). WordPress core is not directly vulnerable to this issue, but we’ve added hardening to prevent plugins and themes from accidentally causing a vulnerability. Reported by Anthony Ferrara.

This release includes a change in behaviour for the esc_sql() function. Most developers will not be affected by this change, you can read more details in the developer note.

Thank you to the reporter of this issue for practicing responsible disclosure.

Download WordPress 4.8.3 or venture over to Dashboard → Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.8.3.

See Also:

For more WordPress news, check out the WordPress Planet.

There’s also a development P2 blog.

To see how active the project is check out our Trac timeline, it often has 20–30 updates per day.

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