CVE-2026-103245 n8n before 1.123.80, 2.39.6, and 2.40.1 Missing Webhook Signature Verification

n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 fail to verify the x-webflow-signature HMAC in the Webflow Trigger node webhook handler. Unauthenticated attackers can send forged webhook requests with attacker-controlled payloads to trigger workflows and...

EUVD-2026-90749

n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 fail to verify the x-webflow-signature HMAC in the Webflow Trigger node webhook handler. Unauthenticated attackers can send forged webhook requests with attacker-controlled payloads to trigger workflows and...

CVE-2026-86485

JetBrains YouTrack prior to version 2026.2.18634 is vulnerable to IP spoofing via HTTP headers , which allowed an attacker to forge Bitbucket webhook events. The underlying cause is the lack of proper source validation on incoming webhook requests, permitting a local actor with user interaction t...

PT-2026-86857

In JetBrains YouTrack before 2026.2.18634 iP spoofing via HTTP headers allowed forged Bitbucket webhooks...

PraisonAI: Webhook signature verification skipped (fail-open) when secret unset, allowing forged inbound webhooks (WhatsApp & Linear bots)

The WhatsApp and Linear bot adapters verify the inbound webhook HMAC signature only when a secret is configured. When the secret environment variable is unset — the default on a fresh install and common in development — verification is skipped entirely and the webhook body is parsed and dispatche...

Missing Authentication for Critical Function

Overview symfony/mailtrap-mailer is a Symfony Mailtrap Mailer Bridge Affected versions of this package are vulnerable to Missing Authentication for Critical Function via the doParse webhook request parser in the Mailtrap mailer bridge. An attacker can submit forged webhook events because the pars...

Missing Authentication for Critical Function

Overview symfony/lox24-notifier is a Symfony LOX24 Notifier Bridge Affected versions of this package are vulnerable to Missing Authentication for Critical Function via the doParse webhook request parsers in the Mailjet maile bridge and LOX24 SMS notifier bridge. An attacker can submit forged...

Improper Authentication

github.com/QuantumNous/new-api is vulnerable to Improper Authentication. The vulnerability is due to insufficient validation of Stripe webhook events, which allows an attacker to forge webhook requests and fraudulently credit quota to an account without making a payment...

EUVD-2026-19584

The Charitable – Donation Plugin for WordPress – Fundraising with Recurring Donations & More plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in versions up to, and including, 1.8.9.7. This is due to missing cryptographic verification of incoming Stripe webhook...

EUVD-2026-1185

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...

CVE-2026-21894

n8n (open-source workflow automation) contains an authentication bypass in the Stripe Trigger node. In versions 0.150.0 through 2.2.1, the Stripe Trigger creates/stores a webhook signing secret but does not verify incoming Stripe webhook requests against it, allowing unauthenticated parties who k...

CVE-2025-11564 Tutor LMS – eLearning and online course solution <= 3.8.3 - Missing Authorization to Unauthenticated Payment Status Update

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check while verifying webhook signatures on the "verifyAndCreateOrderData" function in all versions up to, and including, 3.8.3. This makes it...

EUVD-2025-35913

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check while verifying webhook signatures on the "verifyAndCreateOrderData" function in all versions up to, and including, 3.8.3. This makes it...

CVE-2025-11564

CVE-2025-11564 affects Tutor LMS – eLearning and online course solution for WordPress (versions up to and including 3.8.3). The root cause is a missing capability check when verifying webhook signatures in the verifyAndCreateOrderData function, enabling unauthenticated attackers to bypass payment...

CVE-2025-11564 Tutor LMS – eLearning and online course solution <= 3.8.3 - Missing Authorization to Unauthenticated Payment Status Update

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check while verifying webhook signatures on the "verifyAndCreateOrderData" function in all versions up to, and including, 3.8.3. This makes it...