{"id":"CVE-2026-3640","state":"PUBLISHED","title":"STRABL <= 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.","publishedAt":"2026-06-19T06:51:07.326Z","updatedAt":"2026-06-22T15:59:26.286Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["strablengineering STRABL – A checkout solution"],"affected":[{"vendor":"strablengineering","product":"STRABL – A checkout solution","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.5","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/04eb82e4-1738-44c7-980e-8e33a7a3a23a?source=cve","https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/trunk/src/Orders/OrderWebhookController.php#L60","https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/tags/4.5/src/Orders/OrderWebhookController.php#L60","https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/trunk/src/Orders/OrderWebhookController.php#L64","https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/tags/4.5/src/Orders/OrderWebhookController.php#L64","https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/trunk/src/Orders/OrderWebhookController.php#L88","https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/tags/4.5/src/Orders/OrderWebhookController.php#L88","https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/trunk/src/Orders/OrderWebhookController.php#L550","https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/tags/4.5/src/Orders/OrderWebhookController.php#L550","https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/trunk/src/Orders/OrderWebhookController.php#L199","https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/tags/4.5/src/Orders/OrderWebhookController.php#L199","https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/trunk/src/Orders/CustomerRepository.php#L17","https://plugins.trac.wordpress.org/browser/strabl-a-checkout-solution/tags/4.5/src/Orders/CustomerRepository.php#L17","https://plugins.trac.wordpress.org/changeset/3558301"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/3xxx/CVE-2026-3640.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3640","state":"PUBLISHED","datePublished":"2026-06-19T06:51:07.326Z","dateUpdated":"2026-06-22T15:59:26.286Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-03-06T16:02:29.333Z"},"containers":{"cna":{"title":"STRABL <= 4.5 - Unauthenticated Arbitrary Webhook Creation via REST API Endpoint","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"strablengineering","product":"STRABL – A checkout solution","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.5","versionType":"semver"}]}],"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"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":5.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862 Missing Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-06-19T06:51:07.326Z"},"credits":[{"lang":"en","type":"finder","value":"Teerachai Somprasong"}],"timeline":[{"time":"2026-03-09T10:17:59.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-06-18T17:50:04.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-22T15:59:15.746377Z","id":"CVE-2026-3640","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-22T15:59:26.286Z"}}]}}}