CVE-2025-20382 Details
Description
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.
A vulnerability exists in Splunk Enterprise versions prior to 10.0.2, 9.4.6, 9.3.8, and 9.2.10, as well as in Splunk Cloud Platform versions prior to 10.1.2507.10, 10.0.2503.8, and 9.3.2411.120. The issue allows low-privileged users, who do not have 'admin' or 'power' roles, to create a views dashboard with a custom background using the 'data:image/png;base64' protocol. This could lead to an unvalidated redirect, bypassing Splunk's external URL warning mechanism and redirecting users to a malicious external site. Exploitation requires phishing the victim into initiating a request in their browser.
Users of Splunk Enterprise should upgrade to versions 10.0.2, 9.4.6, 9.3.8, 9.2.10, or higher. For Splunk Cloud Platform, no action is needed as Splunk is actively monitoring and patching instances. As a workaround, Splunk Web can be disabled.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Dec 3, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://advisory.splunk.com/advisories/SVD-2025-1201 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-601 | URL Redirection to Untrusted Site ('Open Redirect') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| splunk splunk | >= 9.2.0, < 9.2.10 >= 9.3.0, < 9.3.8 >= 9.4.0, < 9.4.6 >= 10.0.0, < 10.0.2 |
CPE
Remediation
| |
| splunk splunk cloud platform | >= 9.3.2411, < 9.3.2411.120 >= 10.0.2503, < 10.0.2503.8 >= 10.1.2507, < 10.1.2507.10 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Dec 5, 2025 | Initial Analysis | [email protected] |
| Dec 3, 2025 | New CVE Received | [email protected] |