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Custom User Registration Fields for WooCommerce CVE-2026-15369

| EUVDEUVD-2026-68134 CRITICAL
Improper Privilege Management (CWE-269)
2026-08-29 Wordfence GHSA-8fc6-vv8j-hx7j
9.8
CVSS 3.1 · NVD
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Severity by source

Vendor (Wordfence) PRIMARY
CRITICAL
qualitative
NVD
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
9.8 CRITICAL

Unauthenticated network request (PR:N/AV:N) to the Store API grants Administrator, fully compromising confidentiality, integrity, and availability; the config prerequisite is a deployment condition, not attacker complexity, so AC:L is retained.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (Wordfence).

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Aug 29, 2026 - 20:00 vuln.today
CVE Published
Aug 29, 2026 - 19:26 cve.org
CRITICAL 9.8

DescriptionNVD

The Custom User Registration Fields for WooCommerce plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 2.2.3. This is due to the plugin accepting an attacker-controlled afreg_select_user_role value from the unauthenticated WooCommerce Store API /wc/store/v1/checkout request in the af_reg_checkout_data_to_order_meta_data_block() function, persisting it in order meta, and then passing it directly to WP_User::add_role() in the af_reg_custom_order_processing_function() function (hooked to woocommerce_thankyou) without validating against the plugin's admin-configured allowed role list. This makes it possible for unauthenticated attackers to elevate their privileges to Administrator by creating an account during checkout with a modified JSON body specifying administrator (or any other role slug) as the desired role. Note: The exploit requires the "User Role Selection" setting to be enabled.

AnalysisAI

Privilege escalation to Administrator in the Addify Custom User Registration Fields for WooCommerce plugin (versions ≤ 2.2.3) lets unauthenticated attackers gain admin rights by supplying an arbitrary role slug during WooCommerce checkout. The plugin trusts an attacker-controlled afreg_select_user_role value from the unauthenticated Store API /wc/store/v1/checkout request and passes it straight to WP_User::add_role() without validating it against the admin-configured allowed role list. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation The exploit requires the plugin's 'User Role Selection' setting to be enabled (a non-default configuration); without it the vulnerable role-assignment path is not exercised. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The supplied CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, base 9.8) reflects remote, unauthenticated, low-complexity exploitation yielding full compromise, which is consistent with the described attack. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation No vendor-released patch version was identified in the available data, so update to any release newer than 2.2.3 once the vendor publishes one and monitor the Wordfence advisory (https://www.wordfence.com/threat-intel/vulnerabilities/id/715723e7-5820-4a64-848f-f89b5b73a681?source=cve) and the product page (https://woocommerce.com/products/custom-user-registration-fields-for-woocommerce/) for a fix. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, immediately disable the 'User Role Selection' feature in the plugin settings or deactivate the plugin entirely to prevent exploitation. …

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CVE-2026-15369 vulnerability details – vuln.today

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