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Miraikan Assist App vulnerable to cross-site scripting

unknownCVE-2026-73537
Miraikan Assist App provided by Japan Science and Technology Agency (JST) contains a cross-site scripting vulnerability.

CSIRTS triage

vendor: Japan Science and Technology Agency (JST)product: Miraikan Assist AppCross-site scripting
What
A cross-site scripting vulnerability exists in the application.
Who is affected
Users of Miraikan Assist App.
Urgency
Low to moderate severity; no exploitation reported, but XSS can compromise user sessions.
Action
Contact JST or check for an available patch for Miraikan Assist App.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
JVN (Japan Vulnerability Notes) (JP · national-cert · site)
Severity
unknown
Published
2026-08-21
Exploitation
Not in CISA KEV at last sync

Original advisory: https://jvn.jp/en/jp/JVN09266484/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-73537coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Miraikan Assist App

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from JVN (Japan Vulnerability Notes)