CVE Catalog

CVE-2026-93388

CriticalCVSS 9.8
Published: Translated: NVD NIST

Summary

The Printcart Store (PCDesigner / NB Designer) plugin for WooCommerce up to version 2.9.1 is vulnerable to unauthenticated arbitrary file upload leading to remote code execution. The nbdesigner_copy_image_from_url AJAX action is registered for logged-out callers, and its Google Drive branch rebuilds the destination filename from the raw gapi[name] parameter, bypassing the allow-list, and writes the fetched bytes to a web-accessible directory. This allows unauthenticated attackers to write a .php file to an executable location and execute arbitrary code on the server.

Risk Assessment

An unauthenticated attacker can execute arbitrary code on the server, leading to full compromise of the site and server.

Recommendation

Update the Printcart Store plugin to the latest patched version. Restrict access to the AJAX action and monitor uploaded files.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS