CVE-2026-54308

n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, the MicrosoftAgent365Trigger and StripeTrigger node did not validate that inbound requests. As a result, an unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to...

CVE-2026-56357

n8n before 1.123.15 and 2.5.0 contains a webhook forgery vulnerability in the GitHub Webhook Trigger node that fails to implement HMAC-SHA256 signature verification. Attackers who know the webhook URL can send unsigned POST requests to trigger workflows with arbitrary data, spoofing GitHub webhoo...

CVE-2026-56357 n8n - Webhook Forgery via Missing HMAC-SHA256 Signature Verification in GitHub Webhook Trigger

n8n before 1.123.15 and 2.5.0 contains a webhook forgery vulnerability in the GitHub Webhook Trigger node that fails to implement HMAC-SHA256 signature verification. Attackers who know the webhook URL can send unsigned POST requests to trigger workflows with arbitrary data, spoofing GitHub webhoo...

CVE-2026-56357

n8n’s GitHub Webhook Trigger node is affected in versions before 1.123.15 and 2.5.0 due to missing HMAC-SHA256 signature verification. This allows an attacker who knows the webhook URL to send unsigned POST requests, potentially triggering workflows with arbitrary data and spoofing GitHub webhook...

CVE-2026-12093

The Simple Membership plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.7.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to deactivate arbitra...

CVE-2026-4986 WPForms Lite < 1.10.0.5 – Unauthenticated PayPal Webhook Forgery

The WPForms WordPress plugin before 1.10.0.5 does not verify the authenticity of incoming PayPal webhook events before processing them, allowing unauthenticated attackers to forge webhook payloads and manipulate the payment state of arbitrary transactions...

CVE-2026-4986 WPForms Lite < 1.10.0.5 – Unauthenticated PayPal Webhook Forgery

The WPForms WordPress plugin before 1.10.0.5 does not verify the authenticity of incoming PayPal webhook events before processing them, allowing unauthenticated attackers to forge webhook payloads and manipulate the payment state of arbitrary transactions...

CVE-2026-4986

The CVE-2026-4986 entry concerns the WPForms WordPress plugin (pre-1.10.0.5). The issue is that incoming PayPal webhook events are not validated for authenticity before processing, enabling unauthenticated attackers to forge webhook payloads and manipulate the payment state of arbitrary transacti...

PT-2026-47688

The WPForms WordPress plugin before 1.10.0.5 does not verify the authenticity of incoming PayPal webhook events before processing them, allowing unauthenticated attackers to forge webhook payloads and manipulate the payment state of arbitrary transactions...

CVE-2026-41432

New API is a large language mode LLM gateway and artificial intelligence AI asset management system. Prior to version 0.12.10, a vulnerability exists in the Stripe webhook handler that allows an unauthenticated attacker to forge webhook events and credit arbitrary quota to their account without...

CVE-2026-41432

New API is a large language mode LLM gateway and artificial intelligence AI asset management system. Prior to version 0.12.10, a vulnerability exists in the Stripe webhook handler that allows an unauthenticated attacker to forge webhook events and credit arbitrary quota to their account without...

CVE-2026-42193

Plunk (open-source email platform built on AWS SES) fixes a prior vulnerability: before v0.9.0, /webhooks/sns accepted unauthenticated SNS payloads without signature/cert/topic ARN verification, enabling forged webhook requests. Attackers could spoof SNS events to trigger automations, unsubscribe...

CVE-2026-42193 Plunk: SNS webhook forgery

Plunk is an open-source email platform built on top of AWS SES. Prior to version 0.9.0, the /webhooks/sns endpoint accepts Amazon SNS notification payloads from unauthenticated requests without verifying the SNS signature, certificate, or topic ARN, meaning anyone can forge a valid-looking webhoo...

CVE-2026-42193 Plunk: SNS webhook forgery

Plunk is an open-source email platform built on top of AWS SES. Prior to version 0.9.0, the /webhooks/sns endpoint accepts Amazon SNS notification payloads from unauthenticated requests without verifying the SNS signature, certificate, or topic ARN, meaning anyone can forge a valid-looking webhoo...

New API 数据伪造问题漏洞

The New API is an interface software developed by QuantumNous. Versions of the New API prior to 0.12.10 had a data manipulation vulnerability. This vulnerability stems from defects in the Stripe webhook handler, which could allow unauthorized attackers to forge webhook events and arbitrarily...

PT-2026-39196

Name of the Vulnerable Software and Affected Versions Plunk versions prior to 0.9.0 Description The '/webhooks/sns' endpoint accepts Amazon SNS notification payloads from unauthenticated requests without verifying the SNS signature, certificate, or topic ARN. This allows an unauthenticated attack...

Improper Verification of Cryptographic Signature

Overview @axonflow/sdk is an AxonFlow SDK - Add invisible AI governance to your applications in 3 lines of code Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature due to the lack of exposure of the HMAC-SHA256 signing key in the SDK's typed API,...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature due to the lack of exposure of the HMAC-SHA256 signing key in the SDK's typed API, which prevents verification of the X-AxonFlow-Signature header on incoming webhook deliveries. An attack...

CVE-2026-3177 Charitable – Donation Plugin for WordPress – Fundraising with Recurring Donations & More <= 1.8.9.7 - Insufficient Verification of Data Authenticity to Unauthenticated Donation Status Forgery via Stripe Webhook

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-2026-16632

The Twilio integration webhook handler accepts any POST request without validating Twilio's 'X-Twilio-Signature'. When processing media messages, it fetches user-controlled URLs 'MediaUrlN' parameters using HTTP requests that include the integration's Twilio credentials in the 'Authorization'...