---
id: GHSA-vhcw-f978-xjjg
title: >-
  Duplicate Advisory: DOM-Based XSS via Unsandboxed iframe srcdoc in HTML
  Preview
summary: >-
  Duplicate Advisory: DOM-Based XSS via Unsandboxed iframe srcdoc in HTML
  Preview
severity: high
cwe:
  - CWE-79
vendor: n8n
product: n8n
ecosystem: npm
affected:
  - n8n < 1.123.64
published: '2026-07-22'
updated: '2026-07-22'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-vhcw-f978-xjjg'
references:
  - url: 'https://github.com/n8n-io/n8n/security/advisories/GHSA-p3rg-hrf9-w9gj'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-65597'
  - url: >-
      https://www.vulncheck.com/advisories/n8n-before-dom-based-xss-via-unsandboxed-iframe
  - url: 'https://github.com/advisories/GHSA-vhcw-f978-xjjg'
tags:
  - ghsa
  - npm
ingestedAt: '2026-07-22T18:05:38.663Z'
---

## Overview

## Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-p3rg-hrf9-w9gj. This link is maintained to preserve external references.

## Original Description
n8n before 1.123.64, 2.x before 2.29.8, and before 2.30.1 contains a DOM-based cross-site scripting vulnerability in the HTML preview, which renders execution output into an iframe srcdoc without the sandbox attribute. A sanitizer bypass allows injected script to execute same-origin as the editor. When a victim opens the preview, the script can call authenticated APIs using the victim's session. An account with global:member privileges can exploit the issue.

## Affected packages

- `n8n < 1.123.64`

## Remediation

Refer to the advisory for the patched release.