---
id: CVE-2026-107645
title: >-
  The Blocksy Companion plugin for WordPress is vulnerable to privilege
  escalation in versions up to, and including, 2.1.58 This is due to the
  implement_user_registration() AJAX handler explicitly disabling Dokan's
  vendor-registration nonc…
summary: >-
  The Blocksy Companion plugin for WordPress is vulnerable to privilege
  escalation in versions up to, and including, 2.1.58 This is due to the
  implement_user_registration() AJAX handler explicitly disabling Dokan's
  vendor-registration nonc…
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-269
published: '2026-10-10'
updated: '2026-10-10'
sourceUpdated: '2026-10-10T04:18:10.090'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107645'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.58/framework/features/account-auth.php#L181
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.58/framework/features/account-auth.php#L24
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.58/framework/features/account-auth.php#L241
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset/3735192/blocksy-companion/tags/2.1.59/framework/features/account-auth.php?old=3723693&old_path=blocksy-companion%2Ftags%2F2.1.58%2Fframework%2Ffeatures%2Faccount-auth.php
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/7757f41d-c1f1-4df1-8048-b1c78a897548?source=cve
    label: security@wordfence.com
tags:
  - nvd
ingestedAt: '2026-10-10T04:21:57.823Z'
---

## Overview

The Blocksy Companion plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 2.1.58 This is due to the implement_user_registration() AJAX handler explicitly disabling Dokan's vendor-registration nonce check (via add_filter('dokan_register_nonce_check', '__return_false')) and then trusting an attacker-supplied $_POST['role'] value when invoking wc_create_new_customer() and wc_set_customer_auth_cookie(). This makes it possible for unauthenticated attackers to elevate their privileges to a Dokan 'seller' (vendor) account — including sites where the Dokan vendor signup is explicitly turned off — and to be auto-authenticated into that account, which grants publishing capabilities beyond those of a normal customer.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.