{"id":"CVE-2026-93388","published":"2026-10-14T02:17:01.720","lastModified":"2026-10-14T18:19:35.843","description":"The Printcart Store (PCDesigner / NB Designer) plugin for WooCommerce is vulnerable to unauthenticated arbitrary file upload leading to remote code execution in all versions up to, and including, 2.9.1 The nbdesigner_copy_image_from_url AJAX action is registered for logged-out callers (wp_ajax_nopriv_), and its Google Drive branch rebuilds the destination filename from the raw, attacker-supplied gapi[name] parameter — bypassing the jpg/jpeg/png/gif allow-list applied on the other branch — and writes the fetched bytes to a web-accessible directory (wp-content/uploads/nbdesigner/temp/). This makes it possible for unauthenticated attackers to write a .php file to a web-served, PHP-executing location and, by supplying their own Google Drive file and OAuth token as the content source, execute arbitrary code on the server. The required save-design nonce is handed to anonymous callers by the nbd_check_use_logged_in endpoint, so it presents no barrier.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-434"],"vendors":[],"products":[],"references":[{"url":"https://plugins.trac.wordpress.org/changeset/3716244/printcart-integration/trunk/includes/class.nbdesigner.php","tags":[]},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=&new=3716244%40printcart-integration%2Ftags%2F2.9.2&old=3715643%40printcart-integration%2Ftags%2F2.9.1","tags":[]},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/788461ba-2cf2-49d2-bbaa-a02de15f33ae?source=cve","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The Printcart Store plugin allows unauthenticated attackers to upload arbitrary files, including PHP code, to a web-accessible directory via a Google Drive integration flaw. This leads to remote code execution on the server without requiring authentication or valid session tokens.","exploitability":"Exploitation is straightforward with no prerequisites beyond access to the vulnerable WordPress site, as the plugin exposes an AJAX endpoint for unauthenticated users and provides a nonce that allows anonymous callers to save designs.","blast_radius":"The vulnerability affects all versions up to and including 2.9.1, potentially impacting a large number of WooCommerce stores using this plugin, with critical impact from arbitrary code execution on the server.","remediation":"Upgrade to version 2.9.2 or later to remediate this vulnerability.","detection":"Monitor for unusual file uploads in wp-content/uploads/nbdesigner/temp/ directory, particularly PHP files with attacker-controlled names, and watch for requests to wp-admin/admin-ajax.php with action=nbdesigner_copy_image_from_url and gapi[name] parameter containing suspicious filenames.","tags":["rce","file-upload","web","woocommerce"],"model":"garnet-coder","analyzedAt":"2026-10-14T08:53:00.246Z"}}