Blocksy Companion <= 2.1.58 - Unauthenticated Privilege Escalation to 'role' Parameter
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.
What to do
Update Blocksy Companion to version 2.1.59 or later.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Blocksy Companion | <= 2.1.58 | 2.1.59 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
CWE-269- Platform
- WordPress
- Package
Blocksy Companion- Disclosed
- 09.10.2026
- Updated
- 12.10.2026 17:20
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Vulnerability history: Blocksy Companion
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 15
- First → latest
- 03.2022 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 1
- Medium 12
Disclosures per year
- 2022: 1
- 2023: 2
- 2024: 4
- 2025: 3
- 2026: 5
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Blocksy Companion <= 2.1.58 - Unauthenticated Privilege Escalation to 'role' Parameter this entry
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