CVE-2025-69234: Whale browser before 4.35.351.12 allows an attacker to escape the iframe sandbox in a sidebar environment.

CVE-2025-69234 · Severity: critical · CVSS 9.1 · Published 2025-12-30

Whale browser before 4.35.351.12 allows an attacker to escape the iframe sandbox in a sidebar environment.

Technologies: Navercorp Whale. Vendors: Navercorp.

Quick answers

Is CVE-2025-69234 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-69234 being exploited in the wild.
How severe is CVE-2025-69234?
Critical severity, with a CVSS score of 9.1, published 30 December 2025.
Which products and versions are affected?
Navercorp Whale. The advisory does not name versions.
Is there a fix for CVE-2025-69234?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-69234?
Check whether you run Navercorp Whale. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Navercorp Whale

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