CVE-2025-63784: An Open Redirect vulnerability exists in the OAuth callback handler in file…
CVE-2025-63784 · Severity: medium · CVSS 6.5 · Published 2025-11-07
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.
No. Junglewise Threat Intelligence has no report of CVE-2025-63784 being exploited in the wild.
How severe is CVE-2025-63784?
Medium severity, with a CVSS score of 6.5, published 7 November 2025.
Which products and versions are affected?
Onlook. The advisory does not name versions.
Is there a fix for CVE-2025-63784?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-63784?
Check whether you run Onlook. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.