AUGUST 4, 2026
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Case File

CVE-2021-34646

CRITICAL · CVSS 9.8 EPSS 50.87%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-30 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects WordPress. Its EPSS score suggests a 50.9% probability of exploitation in the next 30 days.

CVE
CVE-2021-34646
Severity
CRITICAL
CVSS
9.8
EPSS
50.87%
WordPress

Original NVD Description

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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)