CVE-2025-63784 – “Onlook OAuth Open Redirect”

CVE ID : CVE-2025-63784

Published : Nov. 7, 2025, 5:15 p.m. | 14 minutes ago

Description : An Open Redirect vulnerability exists in the OAuth callback handler in file onlook/apps/web/client/src/app/auth/callback/route.ts in Onlook web application 0.2.32. The vulnerability occurs because the application trusts the X-Forwarded-Host header value without proper validation when constructing a redirect URL. A remote attacker can send a manipulated X-Forwarded-Host header to redirect an authenticated user to an arbitrary external website under their control, which can be exploited for phishing attacks.

Severity: 0.0 | NA

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