Same-Origin Policy Bypass in Whale Browser
CVE-2025-69235

7.5HIGH

Key Information:

Vendor

Naver

Status
Naver Whale Browser
Vendor
CVE Published:
30 December 2025

What is CVE-2025-69235?

A vulnerability in Whale Browser prior to version 4.35.351.12 allows attackers to bypass the Same-Origin Policy when operating in a sidebar environment. This security flaw could potentially enable malicious entities to access restricted resources across different origins, posing a significant risk to user data and privacy.

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Affected Version(s)

NAVER Whale browser Windows 4.35.351.12

References

https://cve.naver.com/detail/cve-2025-69235.html
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mingi Jung, wjdaslrl4475@unist.ac.kr, Ulsan National Institute of Science and Technology - WebSecLab
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