Vulnerability in Booster For Woocommerce
CVE-2021-34646
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.
EPSS: 0.509 (98.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Booster Booster_for_woocommerce
- Pluggabl Llc Booster For Woocommcerce — versions 5.4.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Exploit, Third Party Advisory, x_refsource_MISC)
- security@wordfence.com (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-34646?
- CVE-2021-34646 is a critical-severity vulnerability in Booster For Woocommerce, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2021-08-30.
- How severe is CVE-2021-34646?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-34646 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.