vendidero Germanized Plugin up to 4.1.4 on WordPress Activation Token Logic /my-account/edit-account customer_account_activate improper authorization

Summaryinfo

A vulnerability, which was classified as critical, was found in vendidero Germanized Plugin up to 4.1.4. Affected by this vulnerability is the function customer_account_activate of the file /my-account/edit-account of the component Activation Token Logic. Executing a manipulation can lead to improper authorization. This vulnerability is registered as CVE-2026-109231. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in vendidero Germanized Plugin up to 4.1.4. It has been declared as critical. This vulnerability affects the function customer_account_activate of the file /my-account/edit-account of the component Activation Token Logic. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The Germanized for WooCommerce plugin for WordPress is vulnerable to Unauthorized Access of Private Data via Activation Token Reuse in versions up to, and including, 4.1.4. This is due to the `on_user_email_changed` hook — which is responsible for rotating the activation token and recording a pending-email-change marker on an unactivated Customer account — only being registered inside the `is_double_opt_in_login_enabled()` branch when "Disable login for unactivated customers" is set to Yes, leaving the original `?activate=` token valid and entirely unbound to the email address it was issued for when that setting is No. This makes it possible for authenticated attackers, with Subscriber-level access and above, to change their account email to a victim's billing email via the standard `/my-account/edit-account/` form and then redeem their original activation token through `customer_account_activate()`, triggering `link_customer_past_orders()` to reassign any matching guest order to the attacker's account and exposing the original buyer's billing name, street address, phone number, and purchased items on the attacker's My Account order page. Exploitation requires the site to have double opt-in enabled with "Disable login for unactivated customers" explicitly set to No (a non-default configuration), public customer registration enabled, and the original activation token redeemed within its one-day expiry window.

The advisory is available at wordfence.com. This vulnerability was named CVE-2026-109231 since 10/12/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/31/2026). This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• vendidero

Name

• Germanized Plugin

Version

• 4.1.0
• 4.1.1
• 4.1.2
• 4.1.3
• 4.1.4

CPE 2.3info

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CPE 2.2info

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