{"id":16369729,"date":"2026-08-06T22:47:14","date_gmt":"2026-08-06T22:47:14","guid":{"rendered":"https:\/\/wordpress.org\/documentation\/?post_type=helphub_version&#038;p=16369729"},"modified":"2026-08-06T22:47:14","modified_gmt":"2026-08-06T22:47:14","slug":"version-4-9-30","status":"publish","type":"helphub_version","link":"https:\/\/wordpress.org\/documentation\/wordpress-version\/version-4-9-30\/","title":{"rendered":"Version 4.9.30"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">On August 6, 2026, WordPress 4.9.30 was released to the public.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Installation\/Update Information<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">To get this version, update automatically from the Dashboard &gt; Updates menu in your site&#8217;s admin area or visit <a href=\"https:\/\/wordpress.org\/download\/releases\/\">https:\/\/wordpress.org\/download\/releases\/<\/a>.<br>For step-by-step instructions on installing and updating WordPress:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/wordpress.org\/documentation\/article\/updating-wordpress\/\">Updating WordPress<\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If you are new to WordPress, we recommend that you begin with the following:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/wordpress.org\/documentation\/article\/get-started-with-wordpress\/\">Get Started With WordPress<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/wordpress.org\/documentation\/article\/first-steps-with-wordpress-classic\/\">First Steps With WordPress<\/a> or <a href=\"https:\/\/developer.wordpress.org\/advanced-administration\/upgrade\/upgrading\/\">Upgrading WordPress Extended<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/learn.wordpress.org\/courses\/\">WordPress Courses<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Summary<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Security updates<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This release features several security fixes. Because this is a security release, <strong>it is recommended that you update your sites immediately.<\/strong><br>The security team would like to thank the following people for <a href=\"https:\/\/hackerone.com\/wordpress?type=team\">responsibly reporting vulnerabilities<\/a>, and allowing them to be fixed in this release:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A bypass of the email address confirmation flow reported by 0ways<\/li>\n\n\n\n<li>An Author+ CSS injection issue via a bypass of the safe CSS attribute filter reported by Anthropic<\/li>\n\n\n\n<li>A privilege escalation issue on multisite networks with user registration enabled, allowing a user to create a new site reported by Aikido Security<\/li>\n\n\n\n<li>A server-side request forgery (SSRF) issue in URL validation allowing requests to link-local ranges reported by Andrew Mohawk and multiple independent reporters<\/li>\n\n\n\n<li>A pre-auth reflected cross-site scripting (XSS) issue on the login screen with potential to lead to PHP code execution reported by the team at pwn.ai<\/li>\n\n\n\n<li>An enumeration of post slugs reported by HDWSec<\/li>\n\n\n\n<li>A Contributor+ stored cross-site scripting (XSS) issue in Quick Edit on sites with a large number of users reported by Naveen S and Ajmal Moochingal<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Change log<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">List of files revised<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">\/wp-admin\/includes\/user.php<br>\/wp-admin\/js\/inline-edit-post.js<br>\/wp-includes\/canonical.php<br>\/wp-includes\/http.php<br>\/wp-includes\/kses.php<br>\/wp-includes\/user.php<br>\/wp-signup.php<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">List of packages revised<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No package was revised.<\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>On August 6, 2026, WordPress 4.9.30 was released to the public. Installation\/Update Information To get this version, update automatically from the Dashboard &gt; Updates menu in your site&#8217;s admin area or visit https:\/\/wordpress.org\/download\/releases\/.For step-by-step instructions on installing and updating WordPress: If you are new to WordPress, we recommend that you begin with the following: Summary [&hellip;]<\/p>\n","protected":false},"author":2097165,"featured_media":0,"menu_order":0,"template":"","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false},"helphub_major_release":[],"class_list":["post-16369729","helphub_version","type-helphub_version","status-publish","hentry"],"revision_note":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/wordpress.org\/documentation\/wp-json\/wp\/v2\/wordpress-versions\/16369729","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.org\/documentation\/wp-json\/wp\/v2\/wordpress-versions"}],"about":[{"href":"https:\/\/wordpress.org\/documentation\/wp-json\/wp\/v2\/types\/helphub_version"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.org\/documentation\/wp-json\/wp\/v2\/users\/2097165"}],"version-history":[{"count":2,"href":"https:\/\/wordpress.org\/documentation\/wp-json\/wp\/v2\/wordpress-versions\/16369729\/revisions"}],"predecessor-version":[{"id":16369778,"href":"https:\/\/wordpress.org\/documentation\/wp-json\/wp\/v2\/wordpress-versions\/16369729\/revisions\/16369778"}],"wp:attachment":[{"href":"https:\/\/wordpress.org\/documentation\/wp-json\/wp\/v2\/media?parent=16369729"}],"wp:term":[{"taxonomy":"helphub_major_release","embeddable":true,"href":"https:\/\/wordpress.org\/documentation\/wp-json\/wp\/v2\/helphub_major_release?post=16369729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}