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CVE-2026-76009

HIGH 8.1 CVSS 3.1
Published
September 9, 2026
Last modified
September 9, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-287
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The Next-Cart Store to WooCommerce Migration plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 3.9.8 via the `NCWM_Kitconnect::run()` function. This is due to the plugin registering the `/wp-json/next_cart/v1/migration` REST route with `permission_callback` set to `__return_true` and relying on a hardcoded fallback value of `__token__` in `get_option('nextcart_token', '__token__')` when the `nextcart_token` option has not yet been written to the database. This makes it possible for unauthenticated attackers to bypass authentication to the migration endpoint by supplying the literal string `__token__` as the token, gaining access to privileged handlers that pass attacker-controlled SQL directly to `$wpdb->query()` and `$wpdb->get_results()` — enabling arbitrary SQL execution including administrator account creation — and pass an attacker-controlled path to `unlink()`, enabling arbitrary file deletion and full site takeover. The hardcoded fallback is reachable whenever the `nextcart_token` option has not yet been populated, which occurs after WP-CLI, network, or programmatic plugin activation without a subsequent authenticated `wp-admin` visit, as token generation is deferred to `admin_init` via `register_settings()`.

Affected WordPress components

  • Next-Cart Store to WooCommerce Migration Plugin · nextcart-woocommerce-migration
    Confirmed match Active
    Up to and including 3.9.8
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • martinnguyen1990 Next-Cart Store to WooCommerce Migration — Up to and including 3.9.8

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/carts/kitconnect-api.php#L120
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/carts/kitconnect-api.php#L23
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/carts/kitconnect-api.php#L336
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/main.php#L123
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/main.php#L40
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3686100%40nextcart-woocommerce-migration&new=3686100%40nextcart-woocommerce-migration
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/739b57d9-8066-4c2a-9419-f6cd9409433c?source=cve
  • nvd.nist.gov Official NVD record