CVE-2026-3640
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk30th percentile — higher than 30% of all known CVEs
Summary
The STRABL – A checkout solution plugin for WordPress is vulnerable to Missing Authentication in all versions up to and including 4.5. The plugin registers a REST API webhook endpoint that allows all incoming requests without any authentication checks.
Risk Assessment
The lack of authentication allows unauthenticated attackers to create fraudulent WooCommerce orders and manipulate existing orders, which can lead to financial losses for the organization.
Recommendation
It is recommended to update the STRABL plugin to the latest version that includes security fixes and to implement additional authentication mechanisms for API endpoints.
Original NVD description (English source)
The STRABL – A checkout solution plugin for WordPress is vulnerable to Missing Authentication in all versions up to and including 4.5. The plugin registers a REST API webhook endpoint at /wp-json/strabl/webhook/order with a permission_callback of __return_true, which allows all incoming requests without any authentication or authorization checks. No shared secret, signature validation, HMAC verification, or token-based authentication is implemented. This makes it possible for unauthenticated attackers to create fraudulent WooCommerce orders and mark them as completed by supplying paymentStatus=paid, manipulate existing order statuses by providing an externalOrderId, create new WordPress user accounts with the customer role, issue refunds on existing orders, cancel existing orders, and apply chargeback fees — all without making a legitimate payment or having any valid credentials.