CVE-2026-54303 n8n: Reflected XSS via Facebook, WhatsApp, and Microsoft Teams Trigger Webhook Verification Endpoints

n8n is an open source workflow automation platform. Prior to 2.24.0, an endpoint in the Meta and Microsoft Teams trigger nodes reflects a query parameter into the HTTP response without sanitization or Content-Security-Policy headers, enabling reflected XSS in the n8n origin when a logged-in user...

GHSA-RGVG-3WPC-H44P Budibase: Mass Assignment in Webhook Trigger Allows Cross-Workspace Automation Execution via appId Override

Summary The webhook trigger endpoint in Budibase is publicly accessible and passes the full HTTP request body into automation execution parameters. A mass assignment vulnerability in externalTrigger allows an attacker to overwrite the internal appId property by including it in the webhook POST...

Budibase: Mass Assignment in Webhook Trigger Allows Cross-Workspace Automation Execution via appId Override

Summary The webhook trigger endpoint in Budibase is publicly accessible and passes the full HTTP request body into automation execution parameters. A mass assignment vulnerability in externalTrigger allows an attacker to overwrite the internal appId property by including it in the webhook POST...

Gogs has SSRF in webhook deliveries

Summary The fix for CVE-2022-1285 prevents adding webooks or running webhooks with URLs with a hostname that resolves in localCIDRs. However, webhooks still follow redirects allowing to access hostname inside localCIDRs. This was already communicated in the initial report but it looks like there...

GHSA-C4V7-XG93-QF8G Gogs has SSRF in webhook deliveries

Summary The fix for CVE-2022-1285 prevents adding webooks or running webhooks with URLs with a hostname that resolves in localCIDRs. However, webhooks still follow redirects allowing to access hostname inside localCIDRs. This was already communicated in the initial report but it looks like there...

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 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 - 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...

EUVD-2026-38377

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...

Paymenter has Blind Unauthenticated SSRF on the Paypal gateway module

Summary The PayPal webhook endpoint /extensions/paypal/webhook processes the PAYPAL-CERT-URL HTTP header without validation, allowing attackers to control server-side HTTP request destinations. Technical details: The /extensions/paypal/webhook endpoint processes incoming webhook requests and trus...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the PAYPAL-CERT-URL HTTP header in the /extensions/paypal/webhook endpoint. An attacker can induce the server to make HTTP requests to arbitrary external or internal endpoints by supplying a crafted...

GHSA-7WWH-XCC3-9FCG Paymenter has Blind Unauthenticated SSRF on the Paypal gateway module

Summary The PayPal webhook endpoint /extensions/paypal/webhook processes the PAYPAL-CERT-URL HTTP header without validation, allowing attackers to control server-side HTTP request destinations. Technical details: The /extensions/paypal/webhook endpoint processes incoming webhook requests and trus...

AVideo has an Authorize.Net Webhook Signature Bypass that Enables Wallet Balance Inflation via Forged Payment Data

Summary The Authorize.Net webhook handler at plugin/AuthorizeNet/webhook.php contains a signature verification bypass that allows an attacker to forge webhook requests with arbitrary payment amounts and target user IDs. By supplying a valid transaction ID from a small legitimate purchase, the...

GHSA-95JH-7R58-XMXW AVideo has an Authorize.Net Webhook Signature Bypass that Enables Wallet Balance Inflation via Forged Payment Data

Summary The Authorize.Net webhook handler at plugin/AuthorizeNet/webhook.php contains a signature verification bypass that allows an attacker to forge webhook requests with arbitrary payment amounts and target user IDs. By supplying a valid transaction ID from a small legitimate purchase, the...

Insufficient Verification of Data Authenticity

Overview wwbn/avideo is an Audio and Video Platform or simply "A Video Platform". Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity via the webhook.php process. An attacker can manipulate wallet balances and gain unauthorized access to premium...

MAL-2026-6264 Malicious code in search-from-feed (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector c9291507e6e48bff8b92fcd9dd1f51345077f59aae2692f3d7ca84a8c0581b04 [email protected] is a dependency-confusion attack package. package.json declares both preinstall and postinstall as node callback.js, so the...

CVE-2026-12888

An HTML injection vulnerability exists in the Google Chat webhook notification sent by Thinkst Applied Research Canarytokens, enabling Interface Manipulation in Google Chat. An attacker can insert limited HTML content including links. This issue affects Canarytokens: from Docker tag sha-4aef1db90...

CVE-2026-7664 Unauthenticated Flow Execution via Webhook Endpoint in Langflow OSS

IBM Langflow OSS 1.0.0 through 1.8.4 could allow unauthenticated attackers to access protected MCP project resources and execute MCP operations due to improper authorization enforcement in the Streamable MCP transport endpoint...