CVE-2026-20258
HIGHStored Cross-Site Scripting (XSS) through Classic Dashboard in Splunk Enterprise
Title source: cnaDescription
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.
References (1)
Core 1
Core References
Scores
CVSS v3
7.1
EPSS
0.0021
EPSS Percentile
11.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-79
Status
published
Products (10)
splunk/splunk
9.3.0 - 9.3.13
Splunk/Splunk Cloud Platform
10.1.2507 - 10.1.2507.23
Splunk/Splunk Cloud Platform
10.2.2510 - 10.2.2510.15
Splunk/Splunk Cloud Platform
10.3.2512 - 10.3.2512.11
Splunk/Splunk Cloud Platform
9.3.2411 - 9.3.2411.132
Splunk/Splunk Enterprise
10.0 - 10.0.7
Splunk/Splunk Enterprise
10.2 - 10.2.4
Splunk/Splunk Enterprise
9.3 - 9.3.13
Splunk/Splunk Enterprise
9.4 - 9.4.12
splunk/splunk_cloud_platform
9.3.2411 - 9.3.2411.132
Published
Jun 10, 2026
Tracked Since
Jun 11, 2026