{"id":7847,"date":"2026-07-21T08:43:19","date_gmt":"2026-07-21T07:43:19","guid":{"rendered":"https:\/\/harmonweb.com\/blog\/?p=7847"},"modified":"2026-07-21T08:44:09","modified_gmt":"2026-07-21T07:44:09","slug":"critical-wordpress-security-vulnerability-update-your-website-immediately","status":"publish","type":"post","link":"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/","title":{"rendered":"Critical WordPress Security Vulnerability: Update Your Website Immediately"},"content":{"rendered":"<p>WordPress has released an urgent security update addressing critical vulnerabilities that could allow an attacker to take control of an affected website without logging in.<\/p>\n<p>The vulnerability has been referred to by security researchers as \u201cwp2shell.\u201d It affects WordPress core itself, which means a website may remain vulnerable even when all its plugins and themes are fully updated.<\/p>\n<p>Website owners using an affected WordPress version should update immediately.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a5f57b0e9fa7\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a5f57b0e9fa7\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#What_happened\" >What happened?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#Is_this_caused_by_a_WordPress_plugin\" >Is this caused by a WordPress plugin?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#Which_WordPress_versions_are_affected\" >Which WordPress versions are affected?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#How_to_check_your_current_WordPress_version\" >How to check your current WordPress version<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#How_to_update_WordPress_from_your_dashboard\" >How to update WordPress from your dashboard<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#How_to_update_WordPress_through_HarmonWeb_cPanel\" >How to update WordPress through HarmonWeb cPanel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#Updating_with_WP-CLI\" >Updating with WP-CLI<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#What_to_do_after_updating\" >What to do after updating<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#Signs_that_a_WordPress_website_may_have_been_compromised\" >Signs that a WordPress website may have been compromised<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#Should_you_disable_the_WordPress_REST_API\" >Should you disable the WordPress REST API?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#How_to_reduce_future_WordPress_security_risks\" >How to reduce future WordPress security risks<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#What_HarmonWeb_customers_should_do_now\" >What HarmonWeb customers should do now<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/harmonweb.com\/blog\/critical-wordpress-security-vulnerability-update-your-website-immediately\/#Final_recommendation\" >Final recommendation<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_happened\"><\/span>What happened?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>On July 17, 2026, the WordPress security team released WordPress 7.0.2 to fix one critical and one high-severity security issue.<\/p>\n<p>The most serious issue involves the WordPress REST API and could allow an unauthenticated attacker to execute malicious code on a vulnerable server.<\/p>\n<p>\u201cUnauthenticated\u201d means the attacker does not need a WordPress username, password or administrator account to attempt the attack. A vulnerable website may be targeted remotely through specially prepared requests.<\/p>\n<p>The vulnerabilities are tracked as:<\/p>\n<ul>\n<li>CVE-2026-63030<\/li>\n<li>CVE-2026-60137<\/li>\n<\/ul>\n<p>When chained together, the vulnerabilities could potentially allow an attacker to modify database queries, execute code, install backdoors, create administrator accounts, alter website content or access sensitive information.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Is_this_caused_by_a_WordPress_plugin\"><\/span>Is this caused by a WordPress plugin?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>No. This particular security issue affects WordPress core.<\/p>\n<p>Updating only your plugins will not fix the vulnerability. You must update the main WordPress installation to a secure version.<\/p>\n<p>You should still keep your plugins and themes updated because they may contain separate security vulnerabilities, but the immediate action required for this alert is a WordPress core update.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Which_WordPress_versions_are_affected\"><\/span>Which WordPress versions are affected?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The following versions require attention:<\/p>\n<table>\n<thead>\n<tr>\n<th>WordPress branch<\/th>\n<th>Affected versions<\/th>\n<th>Secure version<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>WordPress 6.8<\/td>\n<td>Some installations on the 6.8 branch<\/td>\n<td>WordPress 6.8.6<\/td>\n<\/tr>\n<tr>\n<td>WordPress 6.9<\/td>\n<td>WordPress 6.9.0 to 6.9.4<\/td>\n<td>WordPress 6.9.5<\/td>\n<\/tr>\n<tr>\n<td>WordPress 7.0<\/td>\n<td>WordPress 7.0.0 to 7.0.1<\/td>\n<td>WordPress 7.0.2<\/td>\n<\/tr>\n<tr>\n<td>WordPress 7.1 Beta<\/td>\n<td>Earlier affected beta versions<\/td>\n<td>WordPress 7.1 Beta 2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>WordPress versions released before version 6.8 are not affected by these particular vulnerabilities. However, running an old WordPress version is still not recommended because it may contain other known security issues.<\/p>\n<p>The safest option is to update to the latest stable WordPress release supported by your website.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_check_your_current_WordPress_version\"><\/span>How to check your current WordPress version<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Log in to your WordPress administration dashboard.<\/p>\n<p>Your WordPress version may be displayed on the Dashboard page under the \u201cAt a Glance\u201d section. You can also open:<\/p>\n<p><strong>Dashboard \u2192 Updates<\/strong><\/p>\n<p>The page will show your current version and inform you whether an update is available.<\/p>\n<p>You can also scroll to the bottom-right corner of most WordPress administration pages, where the installed version is normally displayed.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_update_WordPress_from_your_dashboard\"><\/span>How to update WordPress from your dashboard<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Before performing the update, create a complete backup of your website files and database.<\/p>\n<p>After confirming that a backup is available:<\/p>\n<ol>\n<li>Log in to your WordPress dashboard.<\/li>\n<li>Go to <strong>Dashboard \u2192 Updates<\/strong>.<\/li>\n<li>Locate the WordPress core update.<\/li>\n<li>Click <strong>Update to version 7.0.2<\/strong>, <strong>Update to version 6.9.5<\/strong>, or the latest secure version shown.<\/li>\n<li>Allow the update process to complete without closing the browser window.<\/li>\n<li>Log back into the website and confirm that the pages, forms and other important features are working properly.<\/li>\n<\/ol>\n<p>Depending on your configuration, WordPress may already have installed the security update automatically. You should still check the installed version instead of assuming the update was successful.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_update_WordPress_through_HarmonWeb_cPanel\"><\/span>How to update WordPress through HarmonWeb cPanel<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>HarmonWeb customers can also check and update their WordPress installation through cPanel.<\/p>\n<p>Log in to your HarmonWeb client account and open the cPanel account connected to the affected website.<\/p>\n<p>From cPanel:<\/p>\n<ol>\n<li>Open <strong>WordPress Manager by Softaculous<\/strong> or <strong>WP Toolkit<\/strong>, depending on the option available in your account.<\/li>\n<li>Locate the affected WordPress website.<\/li>\n<li>Check the WordPress version displayed beside the installation.<\/li>\n<li>Create a backup before applying the update.<\/li>\n<li>Select the available WordPress core update.<\/li>\n<li>Start the update and wait for it to complete.<\/li>\n<li>Open the website and WordPress dashboard to verify that everything works correctly.<\/li>\n<\/ol>\n<p>Do not select only the plugin update option. Ensure the main WordPress version is also updated.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Updating_with_WP-CLI\"><\/span>Updating with WP-CLI<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Website administrators with SSH access can check the current version by running:<\/p>\n<pre><code class=\"language-bash\">wp core version\r\n<\/code><\/pre>\n<p>To check whether an update is available, run:<\/p>\n<pre><code class=\"language-bash\">wp core check-update\r\n<\/code><\/pre>\n<p>Create a backup before continuing. You can then update WordPress core with:<\/p>\n<pre><code class=\"language-bash\">wp core update\r\n<\/code><\/pre>\n<p>After the update, update the WordPress database when required:<\/p>\n<pre><code class=\"language-bash\">wp core update-db\r\n<\/code><\/pre>\n<p>Finally, confirm the installed version:<\/p>\n<pre><code class=\"language-bash\">wp core version\r\n<\/code><\/pre>\n<p>The command should show a patched version such as WordPress 7.0.2, 6.9.5 or another newer secure release.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_to_do_after_updating\"><\/span>What to do after updating<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Updating closes the known vulnerability, but it does not automatically remove malicious changes if the website was compromised before the update.<\/p>\n<p>After updating, website administrators should review the site carefully.<\/p>\n<p>Check the WordPress Users page for administrator accounts that you do not recognize. Remove suspicious accounts only after confirming that they are not connected to your developer, agency or website management service.<\/p>\n<p>Review recently installed plugins and themes. Delete anything you did not install or authorize.<\/p>\n<p>Change the passwords for:<\/p>\n<ul>\n<li>WordPress administrator accounts<\/li>\n<li>cPanel<\/li>\n<li>FTP accounts<\/li>\n<li>Email accounts connected to WordPress<\/li>\n<li>Database users, where compromise is suspected<\/li>\n<\/ul>\n<p>You should also regenerate WordPress security salts in the <code>wp-config.php<\/code> file to invalidate existing login sessions.<\/p>\n<p>Scan the website for malware and inspect the following locations for unfamiliar PHP files or recently modified content:<\/p>\n<pre><code class=\"language-text\">\/wp-content\/uploads\/\r\n\/wp-content\/plugins\/\r\n\/wp-content\/themes\/\r\n\/wp-includes\/\r\n\/wp-admin\/\r\n<\/code><\/pre>\n<p>The uploads directory normally contains media files. Unexpected PHP files inside it should be investigated.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Signs_that_a_WordPress_website_may_have_been_compromised\"><\/span>Signs that a WordPress website may have been compromised<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Possible warning signs include:<\/p>\n<ul>\n<li>Unknown WordPress administrator accounts<\/li>\n<li>Visitors being redirected to unfamiliar websites<\/li>\n<li>Spam pages appearing in search results<\/li>\n<li>Unexpected plugins or themes<\/li>\n<li>Website files changing without authorization<\/li>\n<li>Sudden increases in CPU or bandwidth usage<\/li>\n<li>Security warnings from browsers or search engines<\/li>\n<li>Modified <code>.htaccess<\/code>, <code>index.php<\/code> or <code>wp-config.php<\/code> files<\/li>\n<li>Suspicious scheduled tasks or cron jobs<\/li>\n<li>Emails being sent from the hosting account without authorization<\/li>\n<\/ul>\n<p>These signs do not always confirm a compromise, but they should be investigated immediately.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Should_you_disable_the_WordPress_REST_API\"><\/span>Should you disable the WordPress REST API?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Some security researchers have suggested temporarily restricting the affected REST API batch endpoint when an immediate update is impossible.<\/p>\n<p>This should only be treated as a temporary emergency measure. Blocking the REST API may break website functionality, including plugins, mobile applications, WooCommerce features and integrations that depend on it.<\/p>\n<p>Updating WordPress core remains the recommended and most reliable solution.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_reduce_future_WordPress_security_risks\"><\/span>How to reduce future WordPress security risks<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>WordPress security requires continuous maintenance rather than a one-time update.<\/p>\n<p>Enable automatic updates for WordPress security releases. Keep plugins and themes updated, and remove extensions that are no longer being used.<\/p>\n<p>Use strong, unique passwords and enable two-factor authentication for administrator accounts. Avoid using \u201cadmin\u201d as an administrator username.<\/p>\n<p>Install plugins and themes only from trusted developers and legitimate marketplaces. Pirated or \u201cnulled\u201d WordPress products frequently contain hidden malware or backdoors.<\/p>\n<p>Maintain regular off-site backups and periodically confirm that the backups can be restored.<\/p>\n<p>Website owners should also review their WordPress dashboard regularly instead of waiting for a security incident before applying updates.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_HarmonWeb_customers_should_do_now\"><\/span>What HarmonWeb customers should do now<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>HarmonWeb customers running WordPress should log in to their website immediately and verify the installed WordPress version.<\/p>\n<p>Update affected installations to WordPress 7.0.2, WordPress 6.9.5, WordPress 6.8.6 or a newer secure version provided by WordPress.<\/p>\n<p>After updating, confirm that the website is loading correctly and review administrator accounts, plugins and files for suspicious changes.<\/p>\n<p>Customers who cannot access their WordPress dashboard or experience an error during the update can contact <a href=\"https:\/\/harmonweb.com\/contact\">HarmonWeb Support<\/a> for assistance.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Final_recommendation\"><\/span>Final recommendation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Do not postpone this update because your website is small or receives limited traffic. Automated attacks usually scan large numbers of websites and may target any vulnerable installation they can reach.<\/p>\n<p>Back up your website, update WordPress core immediately, verify the installed version and review the site for signs of unauthorized access.<\/p>\n<p>Keeping WordPress, plugins and themes updated remains one of the most effective ways to protect your website from known vulnerabilities.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>WordPress has released an urgent security update addressing critical vulnerabilities that could allow an attacker to take control of an affected website without logging in.<\/p>\n","protected":false},"author":1,"featured_media":7848,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[34],"tags":[],"class_list":["post-7847","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wordpress-performance"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Critical WordPress Vulnerability: Update WordPress Immediately<\/title>\n<meta name=\"description\" content=\"A critical WordPress core vulnerability could allow attackers to take control of affected websites. 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