WordPress security changelog
CRITICAL CVE-2021-34646 Modified

Booster for WooCommerce: Privilege escalation or authentication bypass

Booster for WooCommerce is affected by privilege escalation or authentication bypass. Exposure depends on how the affected operation is made reachable by the site. A successful request can grant permissions or access that the caller should not possess.

CVE / CNA score 9.8 CVSS 3.1 · security@wordfence.com
NVD score 9.8 CVSS 3.1 · nvd@nist.gov
Component
Booster for WooCommerce
Plugin slug
booster-for-woocommerce
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Aug 30, 2021
Weakness
CWE-290 — Authentication Bypass by Spoofing
CWE-330 — Use of Insufficiently Random Values

This CVE was published Aug 30, 2021 and is one of 14 known issues for this plugin.

Update, patch or deactivate.

Update Booster for WooCommerce to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical 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.

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

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

Primary and upstream sources