# CVE-2026-15369 — Addify Custom User Registration Fields for WooCommerce

> As of 2026-08-29, CVE-2026-15369 is a CRITICAL-severity vulnerability in Addify Custom User Registration Fields for WooCommerce, CVSS v3.1 9.8. No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-15369 as of 2026-08-29; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-29

## What is CVE-2026-15369?

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.

The record classifies CVE-2026-15369 under weakness class [CWE-269](https://intel.threadlinqs.com/cwe/CWE-269). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 37 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 9.8 — CRITICAL (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.9/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-29

## Is CVE-2026-15369 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **Addify**: Custom User Registration Fields for WooCommerce

## How to fix CVE-2026-15369

No vendor patch reference has been recorded for CVE-2026-15369 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-15369

No threat campaign in the Threadlinqs corpus currently references CVE-2026-15369, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, GitHub Security Advisories. Last verified by Threadlinqs on 2026-08-30. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

- [wordfence.com](https://www.wordfence.com/threat-intel/vulnerabilities/id/715723e7-5820-4a64-848f-f89b5b73a681?source=cve)
- [woocommerce.com](https://woocommerce.com/products/custom-user-registration-fields-for-woocommerce/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-15369
Full detection coverage and IOCs for threats exploiting CVE-2026-15369 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp