Published:2026/08/21 Last Updated:2026/08/21
JVN#09266484
Miraikan Assist App vulnerable to cross-site scripting
Overview
Miraikan Assist App provided by Japan Science and Technology Agency (JST) contains a cross-site scripting vulnerability.
Products Affected
- "Miraikan Assist App Android version" versions prior to 1.1.7
- "Miraikan Assist App iOS version" versions prior to 1.0.7
Description
Miraikan Assist App provided by Japan Science and Technology Agency (JST) contains the following vulnerability.
- Cross-site scripting (CWE-79)
- 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 Base Score 5.1
- CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N Base Score 4.7
- CVE-2026-73537
Impact
An arbitrary script may be executed in the browser component (WebView) running on the affected product, resulting in the displayed content being altered.
Solution
Update the Application
Update the application to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Link |
| Japan Science and Technology Agency (JST) | Update: Miraikan Assist App |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Credit
RyotaK of GMO Flatt Security Inc. reported this vulnerability to the developer and coordinated. After the coordination was completed, RyotaK reported the case to JPCERT/CC to notify users of the solution through JVN.
Other Information
| JPCERT Alert |
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| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2026-73537 |
| JVN iPedia |
JVNDB-2026-000120 |