Read the docs
TI-2024-27033 Aliases CVE-2024-40618GHSA-4v7h-33pf-w9h6

Cross-site scripting in NAVER Whale browser

Priority MEDIUM 43CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

Whale browser before 3.26.244.21 allows an attacker to execute malicious JavaScript due to improper sanitization when processing a built-in extension.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0037 31st percentileScored 2026-11-07
Fix Fixed NAVER Whale browser (NAVER): 3.26.244.21

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NAVERNAVER Whale browser—3.26.244.21Patch availableCNA
  • NAVER Whale browser VendorNAVER Affected — Fixed in 3.26.244.21 Patch available CNA

CPE names CISA-ADP · 1

CPEVersionsRoleVendor
cpe:2.3:a:naver:whale_browser:*:*:*:*:*:*:*:*——NAVER
  • cpe:2.3:a:naver:whale_browser:*:*:*:*:*:*:*:* Versions — — ·NAVER

Remediation

  • Fix · CNA NAVER Whale browser (NAVER) Fixed in 3.26.244.21

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-40618
  2. 2026-10-03 Alias added: GHSA-4v7h-33pf-w9h6

References

  • TI-2026-84161 billboard.js allows XSS via unsanitized series ids in legend templates CVSS 3.1MEDIUM 6.1
  • TI-2026-19139 Server-side request forgery in NAVER lucy-xss-filter CVSS 3.1MEDIUM 6.1
  • TI-2024-18782 Missing authorization in NAVER nGrinder CVSS 3.1MEDIUM 5.4
  • TI-2025-31281 Prototype pollution in NAVER billboard.js CVSS 3.1CRITICAL 9.8
  • TI-2024-18778 Deserialization of untrusted data in NAVER nGrinder CVSS 3.1CRITICAL 9.8
  • TI-2024-18777 Deserialization of untrusted data in NAVER nGrinder CVSS 3.1CRITICAL 9.8
See all 46 →

Sources