CVE-2026-20258

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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://advisory.splunk.com/advisories/SVD-2026-0608	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:::::enterprise:::*

Configuration 2 (hide)

OR	cpe:2.3:a:splunk:splunk_cloud_platform::::::::
	cpe:2.3:a:splunk:splunk_cloud_platform::::::::
	cpe:2.3:a:splunk:splunk_cloud_platform::::::::
	cpe:2.3:a:splunk:splunk_cloud_platform::::::::

History

15 Jun 2026, 14:03

Type	Values Removed	Values Added
References	~~() https://advisory.splunk.com/advisories/SVD-2026-0608 -~~	() https://advisory.splunk.com/advisories/SVD-2026-0608 - Vendor Advisory
CPE		cpe:2.3:a:splunk:splunk_cloud_platform:::::::: cpe:2.3:a:splunk:splunk:::::enterprise:::*
First Time		Splunk splunk Splunk Splunk splunk Cloud Platform

10 Jun 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-10 18:16

Updated : 2026-06-17 10:17

NVD link : CVE-2026-20258

Mitre link : CVE-2026-20258

CVE.ORG link : CVE-2026-20258

JSON object : View

Products Affected

splunk

splunk_cloud_platform
splunk

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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