CVE-2026-54303 Details
Description
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 visits a crafted URL. This vulnerability is fixed in 2.24.0.
A reflected cross-site scripting vulnerability has been identified in n8n versions prior to 2.24.0. The issue arises in the Meta and Microsoft Teams trigger nodes, where an endpoint reflects a query parameter into the HTTP response without proper sanitization or Content-Security-Policy headers. This flaw allows for reflected XSS in the n8n origin when a logged-in user accesses a crafted URL.
Users should upgrade to n8n version 2.24.0 or later. If an immediate upgrade is not possible, administrators can limit workflow creation and activation permissions to trusted users only, and disable the affected nodes by adding 'n8n-nodes-base.facebookTrigger', 'n8n-nodes-base.whatsAppTrigger', 'n8n-nodes-base.facebookLeadAdsTrigger', and 'n8n-nodes-base.microsoftTeamsTrigger' to the 'NODES_EXCLUDE' environment variable.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 24, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/n8n-io/n8n/security/advisories/GHSA-h86q-fx34-gfjr | [email protected] | MitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| n8n n8n | < 2.24.0 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 25, 2026 | Initial Analysis | [email protected] |
| Jun 24, 2026 | CVE Modified | CISA-ADP |
| Jun 23, 2026 | New CVE Received | [email protected] |