CVE-2025-20227: Information Disclosure through external content warning modal dialog box bypass in Splunk Enterprise Dashboard Studio

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-03-26 · updated 2026-06-17
Weakness: CWE-20

Description

In Splunk Enterprise versions below 9.4.1, 9.3.3, 9.2.5, and 9.1.8, and Splunk Cloud Platform versions below 9.3.2408.107, 9.2.2406.112, 9.2.2403.115, 9.1.2312.208 and 9.1.2308.214, a low-privileged user that does not hold the "admin" or "power" Splunk roles could bypass the external content warning modal dialog box in Dashboard Studio dashboards which could lead to an information disclosure.

Affected products

Splunk Enterprise: from 9.1.0 before 9.1.8; from 9.2.0 before 9.2.4; from 9.3.0 before 9.3.3; 9.4.0 — fixed in 9.1.8, 9.2.4, 9.3.3
Splunk Cloud Platform: from 9.1.2308 before 9.1.2308.214; from 9.1.2312 before 9.1.2312.208; from 9.2.2403 before 9.2.2403.115; from 9.2.2406.100 before 9.2.2406.113; from 9.3.2408.100 before 9.3.2408.107 — fixed in 9.1.2308.214, 9.1.2312.208, 9.2.2403.115, 9.2.2406.113, 9.3.2408.107

How to fix

Upgrade to a fixed version: Splunk Enterprise 9.1.8, 9.2.4, 9.3.3; Splunk Cloud Platform 9.1.2308.214, 9.1.2312.208, 9.2.2403.115, 9.2.2406.113. Check the vendor advisory for mitigations.

References

https://advisory.splunk.com/advisories/SVD-2025-0306

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