CVE-2025-20378

CVSS v3 3.1 LOW

3.1^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.6 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

I

n Splunk Enterprise versions below 10.0.1, 9.4.5, 9.3.7, 9.2.9, and Splunk Cloud Platform versions below 10.0.2503.5, 9.3.2411.111, and 9.3.2408.121, an unauthenticated attacker could craft a malicious URL using the `return_to` parameter of the Splunk Web login endpoint. When an authenticated user visits the malicious URL, it could cause an unvalidated redirect to an external malicious site. To be successful, the attacker has to trick the victim into initiating a request from their browser. The unauthenticated attacker should not be able to exploit the vulnerability at will.

References

Link	Resource
https://advisory.splunk.com/advisories/SVD-2025-1101	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:10.0.0::::enterprise:::
	cpe:2.3:a:splunk:splunk_cloud_platform::::::::
	cpe:2.3:a:splunk:splunk_cloud_platform::::::::
	cpe:2.3:a:splunk:splunk_cloud_platform::::::::

History

03 Dec 2025, 21:43

Type	Values Removed	Values Added
CPE		cpe:2.3:a:splunk:splunk:10.0.0::::enterprise::: cpe:2.3:a:splunk:splunk_cloud_platform:::::::: cpe:2.3:a:splunk:splunk:::::enterprise:::*
References	~~() https://advisory.splunk.com/advisories/SVD-2025-1101 -~~	() https://advisory.splunk.com/advisories/SVD-2025-1101 - Vendor Advisory
First Time		Splunk splunk Cloud Platform Splunk splunk Splunk

12 Nov 2025, 18:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-11-12 18:15

Updated : 2025-12-03 21:43

NVD link : CVE-2025-20378

Mitre link : CVE-2025-20378

CVE.ORG link : CVE-2025-20378

JSON object : View

Products Affected

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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