CVE-2025-20324: splunk Access Control Flaw — Fix

Description

In Splunk Enterprise versions below 9.4.2, 9.3.5, 9.2.7, and 9.1.10 and Splunk Cloud Platform versions below 9.3.2411.104, 9.3.2408.113, and 9.2.2406.119, a low-privileged user that does not hold the "admin" or "power" Splunk roles could create or overwrite [system source type](https://help.splunk.com/en/splunk-enterprise/get-started/get-data-in/9.2/configure-source-types/create-source-types) configurations by sending a specially-crafted payload to the `/servicesNS/nobody/search/admin/sourcetypes/` REST endpoint on the Splunk management port.

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CVSS v3.1 Score

5.4

MEDIUM

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

Weakness Type (CWE)

CWE-284 CWE-284

Affected Products

Vendor	Product	Versions
splunk	splunk	9.1.0 — 9.1.10
splunk	splunk	9.2.0 — 9.2.7
splunk	splunk	9.3.0 — 9.3.5
splunk	splunk	9.4.0 — 9.4.2
splunk	splunk_cloud_platform	9.2.2406 — 9.2.2406.119
splunk	splunk_cloud_platform	9.3.2408 — 9.3.2408.113
splunk	splunk_cloud_platform	9.3.2411 — 9.3.2411.104

References

Advisories & Patches

https://advisory.splunk.com/advisories/SVD-2025-0707

Frequently Asked Questions

What is CVE-2025-20324? +

In Splunk Enterprise versions below 9.4.2, 9.3.5, 9.2.7, and 9.1.10 and Splunk Cloud Platform versions below 9.3.2411.104, 9.3.2408.113, and 9.2.2406.119, a low-privileged user that does not hold the "admin" or "power" Splunk roles could create or overwrite [system source type](https://help.splunk.com/en/splunk-enterprise/get-started/get-data-in/9.2/configure-source-types/create-source-types) configurations by sending a specially-crafted payload to the `/servicesNS/nobody/search/admin/sourcetypes/` REST endpoint on the Splunk management port. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2025-20324? +

CVE-2025-20324 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-20324? +

CVE-2025-20324 affects products from splunk, specifically: splunk, splunk_cloud_platform. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-20324? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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