CVE-2025-20382

MEDIUM WAF: Medium
CVSS 5.4 Published: 2025-12-03
CWE-601

In Splunk Enterprise versions below 10.0.2, 9.4.6, 9.3.8, and 9.2.10, and Splunk Cloud Platform versions below 10.1.2507.10, 10.0.2503.8, and 9.3.2411.120, a low-privileged user that does not hold the "admin" or "power" Splunk roles could create a views dashboard with a custom background using the `data:image/png;base64` protocol that could potentially lead to an unvalidated redirect. This behavior circumvents the Splunk external URL warning mechanism by using a specially crafted URL, allowing for a redirection to an external malicious site. The vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The authenticated user should not be able to exploit the vulnerability at will.

WAF Coverage Analysis

Open Redirect Medium WAF Coverage

OWASP: A01:2021 Broken Access Control

941xxx - XSS / XXE

Affected Software

VendorProductVersion
splunksplunk9.2.0 - 9.2.10
splunksplunk9.3.0 - 9.3.8
splunksplunk9.4.0 - 9.4.6
splunksplunk10.0.0 - 10.0.2
splunksplunk_cloud_platform9.3.2411 - 9.3.2411.120
splunksplunk_cloud_platform10.0.2503 - 10.0.2503.8
splunksplunk_cloud_platform10.1.2507 - 10.1.2507.10

References

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