CVE-2025-20230: splunk Access Control Flaw — Fix

Description

In Splunk Enterprise versions below 9.4.1, 9.3.3, 9.2.5, and 9.1.8, and versions below 3.8.38 and 3.7.23 of the Splunk Secure Gateway app on Splunk Cloud Platform, a low-privileged user that does not hold the “admin“ or “power“ Splunk roles could edit and delete other user data in App Key Value Store (KVStore) collections that the Splunk Secure Gateway app created. This is due to missing access control and incorrect ownership of the data in those KVStore collections.<br><br>In the affected versions, the `nobody` user owned the data in the KVStore collections. This meant that there was no specific owner assigned to the data in those collections.

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CVSS v3.1 Score

4.3

MEDIUM

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

Weakness Type (CWE)

CWE-284 CWE-284

Affected Products

Vendor	Product	Versions
splunk	splunk	9.1.0 — 9.1.8
splunk	splunk	9.2.0 — 9.2.5
splunk	splunk	9.3.0 — 9.3.3
splunk	splunk	9.4.0 — 9.4.1
splunk	splunk_secure_gateway	3.7.0 — 3.7.23
splunk	splunk_secure_gateway	3.8.0 — 3.8.38

References

Advisories & Patches

https://advisory.splunk.com/advisories/SVD-2025-0307

Frequently Asked Questions

What is CVE-2025-20230? +

In Splunk Enterprise versions below 9.4.1, 9.3.3, 9.2.5, and 9.1.8, and versions below 3.8.38 and 3.7.23 of the Splunk Secure Gateway app on Splunk Cloud Platform, a low-privileged user that does not hold the “admin“ or “power“ Splunk roles could edit and delete other user data in App Key Value Store (KVStore) collections that the Splunk Secure Gateway app created. This is due to missing access control and incorrect ownership of the data in those KVStore collections.<br><br>In the affected versions, the `nobody` user owned the data in the KVStore collections. This meant that there was no specific owner assigned to the data in those collections. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2025-20230? +

CVE-2025-20230 has a CVSS v3.1 score of 4.3 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-2025-20230? +

CVE-2025-20230 affects products from splunk, specifically: splunk, splunk_secure_gateway. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-20230? +

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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