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CVE-2026-119075 themegrill registration form for woocommerce: Improper Privilege Management

9.8 criticalEPSS 0.5%

Critical (9.8) in themegrill registration form for woocommerce. EPSS 0.5% estimated probability of exploitation activity in the next 30 days.

On this page
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.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.5% estimated probability of exploitation activity in the next 30 days; 46th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: none · Automatable: yes · Technical impact: total, assessed 2026-11-07. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE
CWE-269 Improper Privilege Management
OWASP Top 10
A06:2025 Insecure Design
Published
Modified
NVD analysis
Deferred: the NVD does not plan to analyze it
Record from
the NVD, synced

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Affected

  • themegrill:registration form for woocommerce

Versions

From the CNA's record in the CVE List.

ProductAffected
themegrill Registration Form for WooCommercethrough 1.1.4

Attack patterns (CAPEC)

  • CAPEC-58 Restful Privilege Elevation Likelihood: High · Severity: High
  • CAPEC-122 Privilege Abuse Likelihood: High · Severity: Medium
  • CAPEC-233 Privilege Escalation

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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