CVE-2026-65904

DOMPurify through 3.3.3 fails to sanitize DOM elements passed via INPLACE mode when the element originates from a different window/realm e.g., an iframe's contentDocument. A cross-realm instanceof check in the private isNode function returns false for foreign-realm nodes, causing DOMPurify to...

CVE-2026-65904 DOMPurify through 3.3.3 Cross-Site Scripting via IN_PLACE mode

DOMPurify through 3.3.3 fails to sanitize DOM elements passed via INPLACE mode when the element originates from a different window/realm e.g., an iframe's contentDocument. A cross-realm instanceof check in the private isNode function returns false for foreign-realm nodes, causing DOMPurify to...

EUVD-2026-48273

DOMPurify through 3.3.3 fails to sanitize DOM elements passed via INPLACE mode when the element originates from a different window/realm e.g., an iframe's contentDocument. A cross-realm instanceof check in the private isNode function returns false for foreign-realm nodes, causing DOMPurify to...

CVE-2026-65904

DOMPurify through 3.3.3 fails to sanitize DOM elements passed via INPLACE mode when the element originates from a different window/realm e.g., an iframe's contentDocument. A cross-realm instanceof check in the private isNode function returns false for foreign-realm nodes, causing DOMPurify to...

CVE-2026-65904

CVE-2026-65904 affects DOMPurify up to version 3.4.3. In IN_PLACE mode, elements sourced from a different window/realm (e.g., iframe contentDocument) fail sanitization due to a cross-realm instanceof check in private _isNode(). The check returns false for foreign-realm nodes, causing the element ...

CVE-2026-65904 DOMPurify through 3.3.3 Cross-Site Scripting via IN_PLACE mode

DOMPurify through 3.3.3 fails to sanitize DOM elements passed via INPLACE mode when the element originates from a different window/realm e.g., an iframe's contentDocument. A cross-realm instanceof check in the private isNode function returns false for foreign-realm nodes, causing DOMPurify to...

CVE-2026-65904 DOMPurify through 3.3.3 Cross-Site Scripting via IN_PLACE mode

DOMPurify through 3.3.3 fails to sanitize DOM elements passed via INPLACE mode when the element originates from a different window/realm e.g., an iframe's contentDocument. A cross-realm instanceof check in the private isNode function returns false for foreign-realm nodes, causing DOMPurify to...

CVE-2026-65914: Improper Neutralization of Input During Web Page Generation

DOMPurify before 3.3.2 contains a mutation-XSS vulnerability when sanitized HTML is reinserted into special parsing contexts using innerHTML with wrappers like script, xmp, iframe, noembed, noframes, or noscript. Attackers can craft payloads with closing sequences that break out of the wrapper...

CVE-2026-65904: Improper Check for Unusual or Exceptional Conditions

DOMPurify through 3.3.3 fails to sanitize DOM elements passed via INPLACE mode when the element originates from a different window/realm e.g., an iframe's contentDocument. A cross-realm instanceof check in the private isNode function returns false for foreign-realm nodes, causing DOMPurify to...

GHSA-P3RG-HRF9-W9GJ n8n: DOM-Based XSS via Unsandboxed iframe srcdoc in HTML Preview

Impact The HTML preview renders execution output into an iframe srcdoc without sandbox, so a sanitizer bypass lets injected script run same-origin as the editor. When a victim opens the preview, it can call authenticated APIs with their session. An account with global:member privileges can exploi...

NPM: n8n: DOM-Based XSS via Unsandboxed iframe srcdoc in HTML Preview

NPM: n8n: DOM-Based XSS via Unsandboxed iframe srcdoc in HTML Preview vulnerability discovered by ? in WordPress Npm n8n versions 1.123.64...

n8n: DOM-Based XSS via Unsandboxed iframe srcdoc in HTML Preview

Impact The HTML preview renders execution output into an iframe srcdoc without sandbox, so a sanitizer bypass lets injected script run same-origin as the editor. When a victim opens the preview, it can call authenticated APIs with their session. An account with global:member privileges can exploi...

Duplicate Advisory: DOM-Based XSS via Unsandboxed iframe srcdoc in HTML Preview

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...

GHSA-VHCW-F978-XJJG Duplicate Advisory: DOM-Based XSS via Unsandboxed iframe srcdoc in HTML Preview

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...

CVE-2026-65597

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...

CVE-2026-65597

Summary: The CVE affects n8n prior to 1.123.64 and 2.x prior to 2.29.8, and before 2.30.1. Vulnerability: DOM-based XSS in the HTML preview that renders output into an iframe srcdoc without the sandbox attribute, enabling a sanitizer bypass and same-origin script execution as the editor. Impact: ...

CVE-2026-65597 n8n before 1.123.64 DOM-Based XSS via Unsandboxed iframe

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...

CVE-2026-65597 n8n before 1.123.64 DOM-Based XSS via Unsandboxed iframe

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...

CVE-2026-65597

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...

EUVD-2026-47641

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...