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9.8

Registration Form for WooCommerce lets anyone become admin

CVE-2026-119075 · published today
Summary

The Registration Form for WooCommerce plug‑in for WordPress (versions up to 1.1.4) lets a stranger add "administrator" to the user_roles field when signing up at checkout. This gives the attacker full control of the website. Update the plug‑in to a newer version or remove the checkout registration feature until it is fixed.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
themegrill registration form for woocommerce <= 1.1.4
Original advisory text
Registration Form for WooCommerce <= 1.1.4 - Unauthenticated Privilege Escalation to 'user_roles' Parameter at Checkout
The Registration Form for WooCommerce plugin for WordPress is vulnerable to privilege escalation due to a missing allow-list check in the FormHandler::validate_checkout_fields() function in versions up to, and including, 1.1.4 The My Account registration path (validate_fields()) validates a submitted 'tgwcfb/user-roles' value against the form's configured allowed roles, but the checkout registration path (validate_checkout_fields(), hooked to woocommerce_after_checkout_validation) stores the raw $_POST['user_roles'] value in $this->valid_data without any allow-list enforcement, and add_user_data() then injects that value into woocommerce_new_customer_data as the new account's role. This makes it possible for unauthenticated attackers to elevate their privileges to Administrator by supplying a user_roles=administrator parameter when creating an account during checkout, resulting in full site takeover.
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker full control (estimated)
Severity
9.8 Critical
Type
CWE-269Improper Privilege Management
Timeline
Published7 Nov 2026
Updated7 Nov 2026
First seen7 Nov 2026
Sources
CVE-2026-119075 · NVD
CVE-2026-119075 · MITRE
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