Iframe Escape Vulnerability in Whale Browser by NAVER
CVE-2025-62583

9.8CRITICAL

Key Information:

Vendor

Naver

Status
Naver Whale Browser
Vendor
CVE Published:
16 October 2025

What is CVE-2025-62583?

In Whale Browser versions prior to 4.33.325.17, an attacker may exploit a vulnerability that allows them to escape the iframe sandbox in dual-tab configurations. This security flaw can lead to unauthorized access to sensitive information and allows malicious content to interact with the user’s session. Users of Whale Browser are advised to update to the latest version to protect against this vulnerability.

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Deploy the Patch

Affected Version(s)

NAVER Whale browser 4.33.325.17

References

https://cve.naver.com/detail/cve-2025-62583.html
vendor-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mingi Jung, mingijung.grape@gmail.com, Ulsan National Institute of Science and Technology-Web Sec Lab
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