CVE-2026-112148

DOM-based XSS in LIFF SDK triggered by crafted URLs enabling arbitrary JavaScript execution

Published Oct 20, 2026 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Description
A vulnerability has been identified in LIFF SDK versions 2.20.0 through 2.31.0, where a DOM-based cross-site scripting (XSS) flaw allows an attacker to execute arbitrary JavaScript in the origin of an affected LIFF application's endpoint when a user opens a specially crafted URL in an external browser, potentially leading to disclosure of JavaScript-accessible authentication tokens or application data, or unauthorized actions using the user's session.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Ly Corporation
Ly Corporation liff Sdk
Vendors & Products Ly Corporation
Ly Corporation liff Sdk
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title DOM-based XSS in LIFF SDK triggered by crafted URLs enabling arbitrary JavaScript execution
Weaknesses CWE-79
Type Values Removed Values Added
Description A vulnerability has been identified in LIFF SDK versions 2.20.0 through 2.31.0, where a DOM-based cross-site scripting (XSS) flaw allows an attacker to execute arbitrary JavaScript in the origin of an affected LIFF application's endpoint when a user opens a specially crafted URL in an external browser, potentially leading to disclosure of JavaScript-accessible authentication tokens or application data, or unauthorized actions using the user's session.
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
LY-Corporation
Published
Updated
Oct 20, 2026, 4:08 PM
Reserved
Oct 19, 2026, 5:46 AM
Status
Deferred
Published
Oct 20, 2026, 7:17 AM
Modified
Oct 20, 2026, 8:11 PM