// For flags

CVE-2025-20321

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

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

En las versiones de Splunk Enterprise anteriores a 9.4.3, 9.3.5, 9.2.7 y 9.1.10, y de Splunk Cloud Platform anteriores a 9.3.2411.104, 9.3.2408.114 y 9.2.2406.119, un atacante no autenticado puede enviar una búsqueda SPL especialmente manipulada que podría cambiar el estado de membresía en un Clúster de Cabeza de Búsqueda (SHC) de Splunk mediante un Cross-Site Request Forgery (CSRF), lo que podría provocar la eliminación del capitán o de un miembro del SHC.<br><br>La vulnerabilidad requiere que el atacante suplante a la víctima con nivel de administrador, engañándola para que inicie una solicitud desde su navegador. El atacante no debería poder explotar la vulnerabilidad a voluntad.

*Credits: Anton (therceman)
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-10-10 CVE Reserved
  • 2025-07-07 CVE Published
  • 2025-07-07 CVE Updated
  • 2025-07-08 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-352: Cross-Site Request Forgery (CSRF)
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Splunk
Search vendor "Splunk"
Splunk Enterprise
Search vendor "Splunk" for product "Splunk Enterprise"
>= 9.4.0 < 9.4.3
Search vendor "Splunk" for product "Splunk Enterprise" and version " >= 9.4.0 < 9.4.3"
en
Affected
Splunk
Search vendor "Splunk"
Splunk Enterprise
Search vendor "Splunk" for product "Splunk Enterprise"
>= 9.3.0 < 9.3.5
Search vendor "Splunk" for product "Splunk Enterprise" and version " >= 9.3.0 < 9.3.5"
en
Affected
Splunk
Search vendor "Splunk"
Splunk Enterprise
Search vendor "Splunk" for product "Splunk Enterprise"
>= 9.2.0 < 9.2.7
Search vendor "Splunk" for product "Splunk Enterprise" and version " >= 9.2.0 < 9.2.7"
en
Affected
Splunk
Search vendor "Splunk"
Splunk Enterprise
Search vendor "Splunk" for product "Splunk Enterprise"
>= 9.1.0 < 9.1.10
Search vendor "Splunk" for product "Splunk Enterprise" and version " >= 9.1.0 < 9.1.10"
en
Affected
Splunk
Search vendor "Splunk"
Splunk Enterprise Cloud
Search vendor "Splunk" for product "Splunk Enterprise Cloud"
>= 9.3.2411.0 < 9.3.2411.104
Search vendor "Splunk" for product "Splunk Enterprise Cloud" and version " >= 9.3.2411.0 < 9.3.2411.104"
en
Affected
Splunk
Search vendor "Splunk"
Splunk Enterprise Cloud
Search vendor "Splunk" for product "Splunk Enterprise Cloud"
>= 9.3.2408.0 < 9.3.2408.114
Search vendor "Splunk" for product "Splunk Enterprise Cloud" and version " >= 9.3.2408.0 < 9.3.2408.114"
en
Affected
Splunk
Search vendor "Splunk"
Splunk Enterprise Cloud
Search vendor "Splunk" for product "Splunk Enterprise Cloud"
>= 9.2.2406.0 < 9.2.2406.119
Search vendor "Splunk" for product "Splunk Enterprise Cloud" and version " >= 9.2.2406.0 < 9.2.2406.119"
en
Affected