What’s Vulnerable › Vulnerabilities

CVE-2025-63784

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-11-07 · updated 2026-06-17
• Weakness: CWE-601

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: 0.2.32

References

• https://blog.soohyun.tech/CVE-2025-63784-Open-Redirect-in-Onlook-27e557175d2e80ac8641fab59dc36021
• https://tossbank.notion.site/Open-Redirect-in-onlook-27e557175d2e80ac8641fab59dc36021

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