{"id":"CVE-2026-3640","aliases":["EUVD-2026-37995","GHSA-v9cf-wxpg-292v"],"status":"published","title":"STRABL \u003c= 4.5 - Unauthenticated Arbitrary Webhook Creation via REST API Endpoint","description":"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.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00644,"percentile":0.51229,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-06-19T06:51:07Z","modified":"2026-06-22T18:16:36Z","products":[{"vendor":"strablengineering","product":"strabl – a checkout solution"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/04eb82e4-1738-44c7-980e-8e33a7a3a23a?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/trunk/src/Orders/OrderWebhookController.php#L60"},{"url":"https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/tags/4.5/src/Orders/OrderWebhookController.php#L60"},{"url":"https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/trunk/src/Orders/OrderWebhookController.php#L64"},{"url":"https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/tags/4.5/src/Orders/OrderWebhookController.php#L64"},{"url":"https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/trunk/src/Orders/OrderWebhookController.php#L88"},{"url":"https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/tags/4.5/src/Orders/OrderWebhookController.php#L88"},{"url":"https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/trunk/src/Orders/OrderWebhookController.php#L550"},{"url":"https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/tags/4.5/src/Orders/OrderWebhookController.php#L550"},{"url":"https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/trunk/src/Orders/OrderWebhookController.php#L199"},{"url":"https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/tags/4.5/src/Orders/OrderWebhookController.php#L199"},{"url":"https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/trunk/src/Orders/CustomerRepository.php#L17"},{"url":"https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/tags/4.5/src/Orders/CustomerRepository.php#L17"},{"url":"https://plugins.trac.wordpress.org/changeset/3558301"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3640"},{"url":"https://github.com/advisories/GHSA-v9cf-wxpg-292v"}],"sources":{"cve":[{"id":"CVE-2026-3640","title":"STRABL \u003c= 4.5 - Unauthenticated Arbitrary Webhook Creation via REST API Endpoint","description":"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.","status":"published","published":"2026-06-19T06:51:07.326Z","modified":"2026-06-22T15:59:26.286Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T13:49:09.229322Z"}],"euvd":[{"id":"EUVD-2026-37995","description":"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.","status":"published","published":"2026-06-19T06:51:07Z","modified":"2026-06-22T15:59:26Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:20:34.745289Z"}],"ghsa":[{"id":"GHSA-v9cf-wxpg-292v","title":"The STRABL – A checkout solution plugin for WordPress is vulnerable to Missing Authentication in...","description":"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.","status":"published","published":"2026-06-19T09:31:52Z","modified":"2026-06-19T09:31:53Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:08:54.452189Z"}],"nvd":[{"id":"CVE-2026-3640","description":"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.","status":"published","published":"2026-06-19T08:16:16.707Z","modified":"2026-06-22T18:16:36.217Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:24.912854Z"}]}}