: The application verifies the forged signature as legitimate, marks the order as paid, and grants the user credits or digital products without any real payment occurring. 2. Authentication Bypass in WordPress/WooCommerce Plugins
A critical vulnerability in the n8n automation platform allows unauthenticated parties to trigger workflows by sending forged Stripe webhook events.
The most prominent "Stripe bypass" in recent security advisories involves forging webhooks when a server is misconfigured with an empty StripeWebhookSecret . stripe-bypass.exe
: Vulnerabilities have been identified in the Stripe Payment Plugin for WooCommerce (WebToffee) and Stripe For WooCommerce.
: If an application (like new-api ) has a null or empty webhook secret by default, an attacker can generate their own HMAC-SHA256 signature using an empty key. : The application verifies the forged signature as
: Any HTTP client knowing the webhook URL can influence downstream business logic by faking subscription or payment events. 4. Potential Malware or False Positives
: Attackers manipulate user-controlled keys to bypass authorization checks, enabling them to make purchases through a victim's unique Stripe identifier. 3. n8n Stripe Trigger Node (CVE-2026-21894) The most prominent "Stripe bypass" in recent security
Several popular WordPress plugins for Stripe have historically suffered from authentication bypasses that allow attackers to place orders using other users' identifiers.