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.
Affected products
onlook: onlook
References2
- blog.soohyun.tech/CVE-2025-63784-Open-Redirect-in-Onlook-27e557… ExploitThird Party Advisory
- tossbank.notion.site/Open-Redirect-in-onlook-27e557175d2e80ac86… Broken Link
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 39 · as of 10 November 2026
- CWE
- CWE-601
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