CyberCVE

CVE-2025-20321

Membership State Change in Splunk Search Head Cluster through a Cross-Site Request Forgery (CSRF) in Splunk Enterprise

Severity
Medium 6.5
CVSS 3.1
Exploited
Not listed
EPSS
0.002
6.5th percentile
Discovered by
Not disclosed
Published
Jul 7, 2025
Assigned by cisco

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.<br><br>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.

Weakness: CWE-352

Affected products

Vendor Product Category Matched by

No product mapping yet — this CVE is pending taxonomy review.

Vendor-reported affected versions (2)
  • Splunk · Splunk Enterprise
  • Splunk · Splunk Enterprise Cloud

Credit

Anton (therceman)

References