CVE-2025-14020: line (CVSS 5.4)

Description

LINE client for Android versions prior to 14.20 contains a UI spoofing vulnerability in the in-app browser where the full-screen security Toast notification is not properly re-displayed when users return from another application, potentially allowing attackers to conduct phishing attacks by impersonating legitimate interfaces.

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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-451 CWE-451

Affected Products

Vendor	Product	Versions
linecorp	line	< 14.20.0

References

Other References

https://hackerone.com/reports/2547989

Frequently Asked Questions

What is CVE-2025-14020? +

LINE client for Android versions prior to 14.20 contains a UI spoofing vulnerability in the in-app browser where the full-screen security Toast notification is not properly re-displayed when users return from another application, potentially allowing attackers to conduct phishing attacks by impersonating legitimate interfaces. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2025-14020? +

CVE-2025-14020 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-14020? +

CVE-2025-14020 affects products from linecorp, specifically: line. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-14020? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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