CVE-2021-34646 CRITICAL

CVE-2021-34646: Booster for WooCommerce <= 5.4.3 Authentication Bypass

Vendor Pluggabl Llc
Product Booster for WooCommcerce
Weakness CWE-290
Published August 30, 2021
Last update May 5, 2025

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Versions up to, and including, 5.4.3, of the Booster for WooCommerce WordPress plugin are vulnerable to authentication bypass via the process_email_verification function due to a random token generation weakness in the reset_and_mail_activation_link function found in the ~/includes/class-wcj-emails-verification.php file. This allows attackers to impersonate users and trigger an email address verification for arbitrary accounts, including administrative accounts, and automatically be logged in as that user, including any site administrators. This requires the Email Verification module to be active in the plugin and the Login User After Successful Verification setting to be enabled, which it is by default.

Key dates

02Disclosure timeline

August 30, 2021 CVE published
May 5, 2025 Record updated