What is CVE-2025-69235?

CVE-2025-69235 is a high-severity vulnerability in Naver Whale Browser, classified under Origin Validation Error. CVSS score: 7.5/10. Published 2025-12-30.

How severe is CVE-2025-69235?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Naver Whale Browser

CVE-2025-69235

Whale browser before 4.35.351.12 allows an attacker to bypass the Same-Origin Policy in a sidebar environment.

Published 2025-12-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (4.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Naver Whale Browser — versions 4.35.351.12
Navercorp Whale

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

cve.naver.com/detail/cve-2025-69235.html (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2025-69235?: CVE-2025-69235 is a high-severity vulnerability in Naver Whale Browser, classified under Origin Validation Error. CVSS score: 7.5/10. Published 2025-12-30.
How severe is CVE-2025-69235?: High severity. CVSS v3 base score is 7.5 out of 10.