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n8n: Same-Origin XSS in Respond to Webhook Node

🗓️ 16 Jun 2026 19:00:31Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 9 Views

Authenticated editors can abuse Respond to Webhook to serve binary content with attacker Content-Type, bypassing content security.

Related
Detection
Refs
Vulners
Node
n8nn8nRange2.0.0-rc.02.25.7npm
OR
n8nn8nRange2.26.02.26.2npm
OR
n8nn8nRange<1.123.55npm

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16 Jun 2026 19:00Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.15.4
CVSS 47
EPSS0.00216
SSVC
9