7.1High

CVE-2026-20258Stored Cross-Site Scripting (XSS) through Classic Dashboard in Splunk Enterprise

Splunk Splunk Enterprise; Splunk Splunk Cloud Platform Published: (5 months ago)

Description

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.

Weakness (CWE): CWE-79

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
splunk splunk 9.3.0 – < 9.3.13
Splunk Splunk Cloud Platform 10.3.2512 – < 10.3.2512.11, 10.2.2510 – < 10.2.2510.15, 10.1.2507 – < 10.1.2507.23, 9.3.2411 – < 9.3.2411.132
Splunk Splunk Enterprise 10.2 – < 10.2.4, 10.0 – < 10.0.7, 9.4 – < 9.4.12, 9.3 – < 9.3.13

References and patches

CPE matches (NVD) (8)

  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* ≥ 9.3.0 < 9.3.13
  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* ≥ 9.4.0 < 9.4.12
  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* ≥ 10.0.0 < 10.0.7
  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* ≥ 10.2.0 < 10.2.4
  • cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:* ≥ 9.3.2411 < 9.3.2411.132
  • cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:* ≥ 10.1.2507 < 10.1.2507.23
  • cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:* ≥ 10.2.2510 < 10.2.2510.15
  • cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:* ≥ 10.3.2512 < 10.3.2512.11