CVE-2026-73537

WebView Cross‑Site Scripting in Miraikan Assist App

Published Aug 21, 2026 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Description
Cross-site scripting vulnerability exists in Miraikan Assist App. If this vulnerability is exploited, an arbitrary script may be executed in the browser component (WebView) running on the affected product, resulting in the displayed content being altered.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Japan Science And Technology Agency (jst)
Japan Science And Technology Agency (jst) miraikan Assist App Android Version
Japan Science And Technology Agency (jst) miraikan Assist App Ios Version
Vendors & Products Japan Science And Technology Agency (jst)
Japan Science And Technology Agency (jst) miraikan Assist App Android Version
Japan Science And Technology Agency (jst) miraikan Assist App Ios Version
Type Values Removed Values Added
Title WebView Cross‑Site Scripting in Miraikan Assist App
Type Values Removed Values Added
Description Cross-site scripting vulnerability exists in Miraikan Assist App. If this vulnerability is exploited, an arbitrary script may be executed in the browser component (WebView) running on the affected product, resulting in the displayed content being altered.
Weaknesses CWE-79
References
Metrics cvssV3_0

{'score': 4.7, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N'}

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:N/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
jpcert
Published
Updated
Aug 21, 2026, 12:44 PM
Reserved
Aug 18, 2026, 1:05 AM
Status
Deferred
Published
Aug 21, 2026, 8:16 AM
Modified
Oct 26, 2026, 10:10 AM