{"id":26189,"date":"2026-03-19T14:26:46","date_gmt":"2026-03-19T08:56:46","guid":{"rendered":"https:\/\/meetanshi.com\/blog\/?p=26189"},"modified":"2026-04-22T16:02:45","modified_gmt":"2026-04-22T10:32:45","slug":"magento-polyshell","status":"publish","type":"post","link":"https:\/\/meetanshi.com\/blog\/magento-polyshell\/","title":{"rendered":"Magento PolyShell: The New Magento Security Threat Explained"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">A new critical vulnerability called PolyShell has just been disclosed and named by <a href=\"https:\/\/sansec.io\/research\/magento-polyshell\" target=\"_blank\" rel=\"noopener\">Sansec<\/a>, affecting nearly all versions of Magento 2 and Adobe Commerce.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At Meetanshi, we want to ensure our clients and the Magento community are prepared. Here is everything you need to know to protect your store.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is Magento PolyShell Vulnerability?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The PolyShell flaw allows unauthenticated attackers to upload malicious files to your server via the Magento REST API.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The attackers use &#8220;polyglot&#8221; files scripts that look like harmless product images to your system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Once uploaded, these files allow hackers to execute commands on your server, potentially leading to data theft or payment skimming.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Affected Versions<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Threat Type<\/strong><\/td><td><strong>Affected Versions \/ Configurations<\/strong><\/td><\/tr><tr><td>Unrestricted File Upload<\/td><td>All Magento Open Source and Adobe Commerce versions up to 2.4.9-alpha2.<\/td><\/tr><tr><td>Stored XSS<\/td><td>All versions pre-2.3.5 OR stores with a custom webserver configuration.<\/td><\/tr><tr><td>Remote Code Execution (RCE)<\/td><td>Stock Nginx 2.0.0\u20132.2.x (via index.php filename).<br>Any version with non-stock Nginx passing all .php to fastcgi.<br>Apache pre-2.3.5 without php_flag engine 0.<\/td><\/tr><tr><td>Patched &amp; Safe<\/td><td>2.4.9-alpha3 and later (Note: This is currently a pre-release version).<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">If you migrate your server or change your configuration in the future, a dormant PolyShell file could suddenly be triggered, giving an attacker full control of your site.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Secure Your Store Today<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Adobe has addressed this in the <a href=\"https:\/\/meetanshi.com\/blog\/magento-2-4-9\/\">2.4.9-beta1<\/a> and later pre-releases, but for many stores on production versions, an isolated patch is not yet available.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We recommend the following:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Server-Side Lockdown:<\/strong> Explicitly block access to the pub\/media\/custom_options\/ directory in your Nginx or Apache configuration.<\/li>\n\n\n\n<li><strong>Verify Your Web Server Config:<\/strong> Stock configurations are often safer than custom ones ensure yours isn&#8217;t accidentally allowing .php execution in media folders.<\/li>\n\n\n\n<li><strong>Malware Scanning:<\/strong> Use a deep-server scanner to check if any suspicious files are already sitting in your custom_options folder.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Don&#8217;t wait for an attack to happen. Whether you need a security audit, a server hardening session, or a full Magento  (Adobe Commerce) upgrade to the latest secure version, our team is ready to help.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><div class=\"meetanshi-cta\">\r\n<div class=\"cta-content-wrapper\">\r\n<span>Magento 2 Security Patches Installation<\/span>\r\n<p>Keep your store secure with the latest Magento 2 patches\u2014add them before it\u2019s too late.<\/p>\r\n<a href=\"https:\/\/meetanshi.com\/magento-security-patches-installation-service.html\" target=\"_blank\" class=\"btn-primary\">Add Now <\/a>\r\n<\/div>\r\n<div class=\"cta-image-new\">\r\n<img decoding=\"async\" src=\"https:\/\/meetanshi.com\/blog\/wp-content\/uploads\/2025\/11\/security-patches-installation-service.png\" alt=\"Magento Security Patches Installation Service\">\r\n<\/div>\r\n<\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A new critical vulnerability called PolyShell has just been disclosed and named by Sansec, affecting nearly all versions of Magento 2 and Adobe Commerce. At&#8230;<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[34],"tags":[],"class_list":["post-26189","post","type-post","status-publish","format-standard","hentry","category-magento"],"acf":[],"_links":{"self":[{"href":"https:\/\/meetanshi.com\/blog\/wp-json\/wp\/v2\/posts\/26189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/meetanshi.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/meetanshi.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/meetanshi.com\/blog\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/meetanshi.com\/blog\/wp-json\/wp\/v2\/comments?post=26189"}],"version-history":[{"count":6,"href":"https:\/\/meetanshi.com\/blog\/wp-json\/wp\/v2\/posts\/26189\/revisions"}],"predecessor-version":[{"id":26367,"href":"https:\/\/meetanshi.com\/blog\/wp-json\/wp\/v2\/posts\/26189\/revisions\/26367"}],"wp:attachment":[{"href":"https:\/\/meetanshi.com\/blog\/wp-json\/wp\/v2\/media?parent=26189"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/meetanshi.com\/blog\/wp-json\/wp\/v2\/categories?post=26189"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/meetanshi.com\/blog\/wp-json\/wp\/v2\/tags?post=26189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}