Vulnerability · Published Aug 30, 2021 · Assigned by Wordfence

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

Critical 9.8

In plain English

A critical-severity authentication bypass by spoofing in Booster for WooCommcerce from Pluggabl LLC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 50.9% (higher than 99% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)50.9%top 1.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC

Official 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.

Affected products (as reported)

VendorProductVersions
Pluggabl LLC Booster for WooCommcerce 5.4.3 – through 5.4.3

Weakness: CWE-290 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References