CVE-2025-20321 Information

Description

In Splunk Enterprise versions below 9.4.3 9.3.5 9.2.7 and 9.1.10 and Splunk Cloud Platform versions below 9.3.2411.104 9.3.2408.114 and 9.2.2406.119 an unauthenticated attacker can send a specially-crafted SPL search that could change the membership state in a Splunk Search Head Cluster (SHC) through a Cross-Site Request Forgery (CSRF) potentially leading to the removal of the captain or a member of the SHC.

The vulnerability requires the attacker to phish the administrator-level victim by tricking them into initiating a request within their browser. The attacker should not be able to exploit the vulnerability at will.

CVSS Vector

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

Reference

https://advisory.splunk.com/advisories/SVD-2025-0704

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5

CNNVD-202507-753 (Published: 2025-07-07)

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