{"id":16242,"date":"2026-10-22T05:11:14","date_gmt":"2026-10-21T20:11:14","guid":{"rendered":"https:\/\/hanami-web.tokyo.jp\/blog\/?p=16242"},"modified":"2026-10-23T04:45:09","modified_gmt":"2026-10-22T19:45:09","slug":"php2026-wordpress","status":"publish","type":"post","link":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/website-running\/security-case\/php2026-wordpress\/","title":{"rendered":"Summary of how to address critical PHP vulnerabilities on WordPress sites."},"content":{"rendered":"<p class=\"wp-block-paragraph\">This is misa from HanamiWEB.<br>Due to the critical vulnerability in PHP announced on October 21, 2026, we have received many inquiries since yesterday.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress uses PHP, so it is a target application.<br>There&#039;s a lot of information circulating about needing to upgrade the PHP version or apply patches, and I imagine many people are feeling very anxious about what to do. For example, with Xserver, as of October 21, 2022, it&#039;s currently impossible to log in to the server.<br>Upgrading the PHP version requires logging into the server, so the conclusion is that it was impossible to access PHP at that time.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"775\" src=\"https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-1024x775.png\" alt=\"\" class=\"wp-image-16243\" srcset=\"https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-1024x775.png 1024w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-300x227.png 300w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-767x581.png 767w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-16x12.png 16w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image.png 1120w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"578\" src=\"https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-1-1024x578.png\" alt=\"\" class=\"wp-image-16244\" srcset=\"https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-1-1024x578.png 1024w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-1-300x169.png 300w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-1-767x433.png 767w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-1-18x10.png 18w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-1.png 1057w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">As of October 22, 2026, it&#039;s now possible to log in to the admin panel, so we&#039;d like to share the steps we took to address the issue on the WordPress sites we manage!<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">table of contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #000000;color:#000000\" 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: #000000;color:#000000\" 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><\/span><\/a><\/span><\/div>\n<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:\/\/hanami-web.tokyo.jp\/blog\/en\/website-running\/security-case\/php2026-wordpress\/#php82%ef%bd%9e85%e3%81%af%e4%bf%ae%e6%ad%a3%e3%83%91%e3%83%83%e3%83%81%e3%81%ae%e9%81%a9%e5%bf%9c%e5%ae%8c%e4%ba%86\" >PHP versions 8.2 through 8.5 have completed the application of the necessary patches.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/hanami-web.tokyo.jp\/blog\/en\/website-running\/security-case\/php2026-wordpress\/#%e4%bf%ae%e6%ad%a3%e6%b8%88%e3%81%aephp%e3%83%90%e3%83%bc%e3%82%b8%e3%83%a7%e3%83%b3%e4%b8%80%e8%a6%a7\" >List of corrected PHP versions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/hanami-web.tokyo.jp\/blog\/en\/website-running\/security-case\/php2026-wordpress\/#php%e3%81%ae%e3%83%90%e3%83%bc%e3%82%b8%e3%83%a7%e3%83%b3%e7%a2%ba%e8%aa%8d%e6%96%b9%e6%b3%95\" >How to check your PHP version<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/hanami-web.tokyo.jp\/blog\/en\/website-running\/security-case\/php2026-wordpress\/#%e5%8b%95%e7%94%bb%e3%81%a7php%e3%81%ae%e3%83%90%e3%83%bc%e3%82%b8%e3%83%a7%e3%83%b3%e7%a2%ba%e8%aa%8d%e6%96%b9%e6%b3%95%e3%82%92%e8%a7%a3%e8%aa%ac%ef%bc%81\" >This video explains how to check your PHP 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:\/\/hanami-web.tokyo.jp\/blog\/en\/website-running\/security-case\/php2026-wordpress\/#wordpress%e3%82%b5%e3%82%a4%e3%83%88%e3%81%ae%e4%bf%9d%e5%ae%88%e7%ae%a1%e7%90%86%e4%bb%a3%e8%a1%8c%e5%af%be%e5%bf%9c%e3%81%97%e3%81%a6%e3%81%be%e3%81%99\" >We offer maintenance and management services for WordPress sites.<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"php82%ef%bd%9e85%e3%81%af%e4%bf%ae%e6%ad%a3%e3%83%91%e3%83%83%e3%83%81%e3%81%ae%e9%81%a9%e5%bf%9c%e5%ae%8c%e4%ba%86\"><\/span>PHP versions 8.2 through 8.5 have completed the application of the necessary patches.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">According to Xserver&#039;s announcement, the application of the fix patch for PHP versions 8.2 through 8.5 has been completed.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"601\" src=\"https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-2-1024x601.png\" alt=\"\" class=\"wp-image-16253\" srcset=\"https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-2-1024x601.png 1024w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-2-300x176.png 300w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-2-768x451.png 768w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-2-18x11.png 18w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-2.png 1042w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%e4%bf%ae%e6%ad%a3%e6%b8%88%e3%81%aephp%e3%83%90%e3%83%bc%e3%82%b8%e3%83%a7%e3%83%b3%e4%b8%80%e8%a6%a7\"><\/span>List of corrected PHP versions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>8.5 series: Applies to versions 8.5.11 and earlier (Revised version: 8.5.12 and above)<\/li>\n\n\n\n<li>8.4 series: Applies to versions prior to 8.4.26 (Revised version: 8.4.27 and above)<\/li>\n\n\n\n<li>8.3 series: Applies to versions 8.3.35 and earlier (Revised version: 8.3.36 and above)<\/li>\n\n\n\n<li>8.2 series: Applies to versions 8.2.34 and earlier (Revised version: 8.2.35 and above)<\/li>\n\n\n\n<li>Since version 8.1 is no longer supported, there is no updated version available.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Upon checking the sites managed by X Server, I found that sites using the 8.2 series were automatically updated to 8.2.35, and sites using the 8.3 series were automatically updated to 8.3.36.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On the other hand, websites using versions 8.1 or lower will not have their PHP versions automatically updated, so they will need to manually switch to the corrected version.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"php%e3%81%ae%e3%83%90%e3%83%bc%e3%82%b8%e3%83%a7%e3%83%b3%e7%a2%ba%e8%aa%8d%e6%96%b9%e6%b3%95\"><\/span>How to check your PHP version<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">You can log in to WordPress and check your PHP version.<br>Management screen<br>Tools &gt; Site Health<br>Open.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"412\" height=\"401\" src=\"https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-3.png\" alt=\"\" class=\"wp-image-16255\" srcset=\"https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-3.png 412w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-3-300x292.png 300w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-3-12x12.png 12w\" sizes=\"(max-width: 412px) 100vw, 412px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Switch to the Information tab.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"504\" src=\"https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-4-1024x504.png\" alt=\"\" class=\"wp-image-16256\" srcset=\"https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-4-1024x504.png 1024w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-4-767x378.png 767w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-4-18x9.png 18w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-4-300x148.png 300w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-4.png 1072w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">When you open the server, the PHP version is listed.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"327\" src=\"https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-5-1024x327.png\" alt=\"\" class=\"wp-image-16257\" srcset=\"https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-5-1024x327.png 1024w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-5-300x96.png 300w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-5-765x244.png 765w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-5-18x6.png 18w, https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/image-5.png 1041w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%e5%8b%95%e7%94%bb%e3%81%a7php%e3%81%ae%e3%83%90%e3%83%bc%e3%82%b8%e3%83%a7%e3%83%b3%e7%a2%ba%e8%aa%8d%e6%96%b9%e6%b3%95%e3%82%92%e8%a7%a3%e8%aa%ac%ef%bc%81\"><\/span>This video explains how to check your PHP version!<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This article explains how to check the PHP version of your WordPress site and how to change the PHP version on X Server!<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"[Critical PHP Vulnerability] This is how we addressed the issue on our WordPress site! Explained in a video using X Server as an example!\" width=\"1290\" height=\"726\" src=\"https:\/\/www.youtube.com\/embed\/zq_kZR9vsno?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><\/h2>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"wordpress%e3%82%b5%e3%82%a4%e3%83%88%e3%81%ae%e4%bf%9d%e5%ae%88%e7%ae%a1%e7%90%86%e4%bb%a3%e8%a1%8c%e5%af%be%e5%bf%9c%e3%81%97%e3%81%a6%e3%81%be%e3%81%99\"><\/span>We offer maintenance and management services for WordPress sites.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">At HanamiWEB, we have been providing maintenance and operation services, spot fixes, and consultations for WordPress sites since WordPress began to be widely used in Japan 10 years ago.<br>If you have any problems, please feel free to contact us via our official LINE account or inquiry form.<\/p>\n\n\n\n<a href=\"https:\/\/lin.ee\/o8l3t55\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/scdn.line-apps.com\/n\/line_add_friends\/btn\/ja.png\" alt=\"\u53cb\u3060\u3061\u8ffd\u52a0\" height=\"36\" border=\"0\"><\/a>\n\n\n\n<p class=\"wp-block-paragraph\">If you are in a hurry, you can also contact us by phone.<br>TEL: 03-6694-7024<\/p>","protected":false},"excerpt":{"rendered":"<p>HanamiWEB\u306emisa\u3067\u3059\u30022026\u5e7410\u670821\u65e5\u306b\u767a\u8868\u3055\u308c\u305fPHP\u306e\u91cd\u5927\u8106\u5f31\u6027\u306e\u5f71\u97ff\u3067\u3001\u5f0a\u793e\u3067\u3082\u6628\u65e5\uff5e\u591a\u304f\u306e\u554f\u5408\u305b\u3092\u3044\u305f\u3060\u3044\u3066\u304a\u308a\u307e\u3059\u3002 WordPress\u306fPHP\u304c\u4f7f\u308f\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u5bfe\u8c61\u3067\u306f\u3042\u308a\u307e\u3059\u3002PHP\u306e\u30d0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16245,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","_uag_custom_page_level_css":"","footnotes":""},"categories":[1447,1567,4,3],"tags":[],"class_list":["post-16242","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-security-case","category-error","category-server","category-website-first"],"uagb_featured_image_src":{"full":["https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/Other.png",720,540,false],"thumbnail":["https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/Other-150x150.png",150,150,true],"medium":["https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/Other-300x225.png",300,225,true],"medium_large":["https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/Other.png",720,540,false],"large":["https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/Other.png",720,540,false],"1536x1536":["https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/Other.png",720,540,false],"2048x2048":["https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/Other.png",720,540,false],"trp-custom-language-flag":["https:\/\/hanami-web.tokyo.jp\/blog\/wp-content\/uploads\/2026\/10\/Other-16x12.png",16,12,true]},"uagb_author_info":{"display_name":"\u682a\u5f0f\u4f1a\u793eHanamiWEB 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\u677e\u6d66\u307f\u3055","author_link":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/author\/hanami\/"},"uagb_comment_info":0,"uagb_excerpt":"HanamiWEB\u306emisa\u3067\u3059\u30022026\u5e7410\u670821\u65e5\u306b\u767a\u8868\u3055\u308c\u305fPHP\u306e\u91cd\u5927\u8106\u5f31\u6027\u306e\u5f71\u97ff\u3067\u3001\u5f0a\u793e\u3067\u3082\u6628\u65e5\uff5e&hellip;","brizy_media":[],"_links":{"self":[{"href":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/wp-json\/wp\/v2\/posts\/16242","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/wp-json\/wp\/v2\/comments?post=16242"}],"version-history":[{"count":7,"href":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/wp-json\/wp\/v2\/posts\/16242\/revisions"}],"predecessor-version":[{"id":16262,"href":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/wp-json\/wp\/v2\/posts\/16242\/revisions\/16262"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/wp-json\/wp\/v2\/media\/16245"}],"wp:attachment":[{"href":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/wp-json\/wp\/v2\/media?parent=16242"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/wp-json\/wp\/v2\/categories?post=16242"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hanami-web.tokyo.jp\/blog\/en\/wp-json\/wp\/v2\/tags?post=16242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}