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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.

PUBLISHED Reserved 2025-10-08 | Published 2026-06-10 | Updated 2026-06-10 | Assigner cisco




HIGH: 7.1CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Problem types

The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Product status

10.2 (custom) before 10.2.4
affected

10.0 (custom) before 10.0.7
affected

9.4 (custom) before 9.4.12
affected

9.3 (custom) before 9.3.13
affected

10.3.2512 (custom) before 10.3.2512.11
affected

10.2.2510 (custom) before 10.2.2510.15
affected

10.1.2507 (custom) before 10.1.2507.23
affected

9.3.2411 (custom) before 9.3.2411.132
affected

Credits

Tony Tong

References

advisory.splunk.com/advisories/SVD-2026-0608

cve.org (CVE-2026-20258)

nvd.nist.gov (CVE-2026-20258)

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