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CVE-2021-34646

CRITICAL 9.8 CVSS 3.1
Published
August 30, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-290, CWE-330
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 and versions

  • Pluggabl LLC Booster for WooCommcerce — From 5.4.3 (including) to 5.4.3 (including)
  • booster booster_for_woocommerce — Up to and including 5.4.3

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2581212%40woocommerce-jetpack&new=2581212%40woocommerce-jetpack&sfp_email=&sfph_mail= Patch, Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/blog/2021/08/critical-authentication-bypass-vulnerability-patched-in-booster-for-woocommerce/ Exploit, Third Party Advisory
  • nvd.nist.gov Official NVD record