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In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.13, an unauthenticated user who tricks another user into visiting a malicious web page could run unauthorized JavaScript in that user's browser. This could allow for unauthorized access to all relevant data available to that user and actions that affect system integrity. The Cross-Site Scripting (XSS) is possible because Splunk Web does not validate the origin and source of messages received by a page message handler. The vulnerability requires the attacker to phish the affected user by tricking them into initiating a request within their browser. The unauthenticated user should not be able to exploit the vulnerability at will.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Splunk | — | Upgrade Splunk Enterprise to version 10.2.6Upgrade Splunk Enterprise to version 10.4.2Upgrade Splunk Enterprise to version 10.0.9Upgrade Splunk Enterprise to version 9.4.14 | Sep 22, 2026 | Aug 19, 2026 |
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