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CVE-2025-53599

Navercorp Whale cross-site scripting (XSS)

9.8 CRITICALEPSS 0.44%
  1. Published4 Jul 2025

Description

Whale browser for iOS before 3.9.1.4206 allow an attacker to execute malicious scripts in the browser via a crafted javascript scheme.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Navercorp Whale< 3.9.1.4206

Remediation

Fixed in
Navercorp Whale≥ 3.9.1.4206

References

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Frequently asked

Is CVE-2025-53599 being actively exploited?

CVE-2025-53599 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.44%.

How severe is CVE-2025-53599?

CVE-2025-53599 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.44% probability of exploitation.

Which products are affected by CVE-2025-53599?

Affected products include Navercorp Whale.

How do I fix CVE-2025-53599?

Upgrade affected software to a fixed version, for example Navercorp Whale 3.9.1.4206 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-53599 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.