PT-2026-48498 · Splunk · Splunk Cloud Platform+1

Tony Tong · Published 2026-06-10 · Updated 2026-06-10 · CVE-2026-20258

NVD

CVSS v3.1

7.1

High

Base vector

AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.3.2512.11, 10.2.2510.15, 10.1.2507.23, and 9.3.2411.132, a low-privileged user that does not hold the "admin" or "power" Splunk roles could store a malicious script in a classic dashboard HTML panel, causing unauthorized JavaScript code to execute in the browser of another user.

The vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The low-privileged user should not be able to exploit the vulnerability at will.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-20258

Affected Products

Splunk Cloud Platform

Splunk Enterprise

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-20258 · Security Note
• https://advisory.splunk.com/advisories/SVD-2026-0608 · Note