CVE-2025-63784

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 63/100
Published: 2025-11-07 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
onlook onlook 0.2.32

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.45%
Raw Score 0.004470
Percentile 39.1%
Date 2026-11-09

EPSS Trend

2026-11-09
0.00447
2026-11-08
0.00447
2026-11-07
0.00447
2026-11-06
0.00447
2026-11-05
0.00447

Intelligence Sources

nvd ref →