Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Splunk | Splunk | >= 9.4.0, < 9.4.13 |
Related Weaknesses (CWE)
References
- https://advisory.splunk.com/advisories/SVD-2026-0801Vendor AdvisoryMitigation
FAQ
What is CVE-2026-76252?
CVE-2026-76252 is a vulnerability with a CVSS score of 6.8 (MEDIUM). 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 use...
How severe is CVE-2026-76252?
CVE-2026-76252 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-76252?
Check the references section above for vendor advisories and patch information. Affected products include: Splunk Splunk.