Résumé
Duplicate Advisory: DOM-Based XSS via Unsandboxed iframe srcdoc in HTML Preview
Détails de l’avis
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This advisory has been withdrawn because it is a duplicate of GHSA-p3rg-hrf9-w9gj.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.
Références
Vulnérabilités liées
Tout Supply chain →- MEDIUMCVE-2026-63670
ApostropheCMS: Mutation-XSS / allowedTags bypass via literal `</textarea/>` solidus close
- MEDIUMCVE-2026-73295
Material for MkDocs: DOM XSS in search suggestions via query parameter
- HIGHGHSA-99rq-75j6-5j9f
SiYuan: Stored and reflected XSS in SiYuan through an SVG sanitizer bypass
- MEDIUMCVE-2026-68921
DiceBear: SVG injection via the unescaped rotate option in @dicebear/core (and fontSize/fontWeight in @dicebear/initials)
- MEDIUMCVE-2026-82396
Sulu: Stored XSS via media download inline-disposition override
- MEDIUMGHSA-cp6q-959q-f8rh
Tiptap: mergeAttributes() turns an own __proto__ key into inherited executable DOM attributes