PT-2026-20777

The Simple Membership plugin for WordPress is vulnerable to Improper Handling of Missing Values in all versions up to, and including, 4.7.0 via the Stripe webhook handler. This is due to the plugin only validating webhook signatures when the stripe-webhook-signing-secret setting is configured,...

CVE-2026-1461: Improper Handling of Missing Values

The Simple Membership plugin for WordPress is vulnerable to Improper Handling of Missing Values in all versions up to, and including, 4.7.0 via the Stripe webhook handler. This is due to the plugin only validating webhook signatures when the stripe-webhook-signing-secret setting is configured,...

Authentication Bypass

n8n is vulnerable to Authentication Bypass. The vulnerability is due to missing verification of Stripe webhook signatures in the Stripe Trigger node, which allows an attacker to send forged webhook requests and trigger workflows as if they were legitimate Stripe events...

CVE-2026-21894 n8n's Missing Stripe-Signature Verification Allows Unauthenticated Forged Webhooks

n8n is an open source workflow automation platform. In versions from 0.150.0 to before 2.2.2, an authentication bypass vulnerability in the Stripe Trigger node allows unauthenticated parties to trigger workflows by sending forged Stripe webhook events. The Stripe Trigger creates and stores a Stri...

GHSA-JF52-3F2H-H9J5 n8n's Missing Stripe-Signature Verification Allows Unauthenticated Forged Webhooks

Impact An authentication bypass in the Stripe Trigger node allows unauthenticated parties to trigger workflows by sending forged Stripe webhook events. The Stripe Trigger creates and stores a Stripe webhook signing secret when registering the webhook endpoint, but incoming webhook requests were n...

User Impersonation

Overview n8n-nodes-base is a Base nodes of n8n Affected versions of this package are vulnerable to User Impersonation via the Stripe Trigger node that does not verify incoming webhook requests against Stripe webhook signing secret. An attacker with valid webhook URL can execute unauthorized...

n8n's Missing Stripe-Signature Verification Allows Unauthenticated Forged Webhooks

Impact An authentication bypass in the Stripe Trigger node allows unauthenticated parties to trigger workflows by sending forged Stripe webhook events. The Stripe Trigger creates and stores a Stripe webhook signing secret when registering the webhook endpoint, but incoming webhook requests were n...

PT-2026-2124

Name of the Vulnerable Software and Affected Versions n8n versions 0.150.0 through 2.2.1 Description n8n is a workflow automation platform. A flaw in the Stripe Trigger node allows unauthenticated parties to trigger workflows by sending forged Stripe webhook events. The Stripe Trigger node create...

Denial Of Service (DoS)

@worker-tools/stripe-webhook is vulnerable to denial of service. The verifyHeader is not an async function in the webhook and causes an error to be thrown after the request has finished...

PT-2021-24377

Name of the Vulnerable Software and Affected Versions: stripe-webhook versions prior to 1.1.4 Description: The issue affects users who verify Stripe webhook requests using the constructEvent function. There is no information about the estimated number of potentially affected devices or real-world...