CVE-2025-14021: Linecorp Line

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

The in-app browser in LINE client for iOS versions prior to 14.14 is vulnerable to address bar spoofing, which could allow attackers to execute malicious JavaScript within iframes while displaying trusted URLs, enabling phishing attacks through overlaid malicious content.

Affected products

• Linecorp Line: before 14.14.0 (fixed in 14.14.0)

Published 2025-12-15. Last modified 2026-10-07.