Severity
Medium
Analysis Summary
CVE-2025-20387 CVSS:8
Splunk Universal Forwarder for Windows could allow a remote authenticated attacker to access the directory and all its contents, caused by an incorrect permission assignment flaw in the Universal Forwarder for Windows Installation directory.
CVE-2025-20381 CVSS:5.4
Splunk MCP Server could allow a remote authenticated attacker to bypass the SPL command allowlist controls in Model Context Protocol (MCP), caused by a flaw when embedding SPL commands as sub-searches.
CVE-2025-20385 CVSS:2.4
Splunk Enterprise and Splunk Cloud Platform are vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the href attribute of an anchor tag within a collection in the navigation bar.
CVE-2025-20386 CVSS:8
Splunk Enterprise could allow a remote authenticated attacker to access the directory and all its contents, caused by an incorrect permission assignment flaw.
CVE-2025-20388 CVSS:2.7
Splunk Enterprise and Splunk Cloud Platform are vulnerable to server-side request forgery, caused by a flaw in the Distributed Search Peers.
CVE-2025-20389 CVSS:4.3
Splunk Enterprise and Splunk Cloud Platform are vulnerable to a denial of service, caused by improper validation of label column field.
CVE-2025-20384 CVSS:5.3
Splunk Enterprise and Splunk Cloud Platform could allow a remote attacker to poison, forge, or obfuscate sensitive log data, caused by improper input validation by the /en-US/static/ web endpoint.
CVE-2025-20382 CVSS:3.5
Splunk Enterprise and Splunk Cloud Platform could allow a remote authenticated attacker to conduct phishing attacks, caused by an open redirect vulnerability when creating a views dashboard with a custom background using the data:image/png;base64 protocol.
CVE-2025-20383 CVSS:4.3
Splunk Enterprise and Splunk Cloud Platform could allow a remote authenticated attacker to obtain the title and description of the report or alert information, caused by improper access control in push notifications.
Impact
- Denial of Service
- Gain Access
- Security Bypass
- Cross-Site Scripting
- Information Disclosure
Indicators of Compromise
CVE
- CVE-2025-20387
- CVE-2025-20381
- CVE-2025-20385
- CVE-2025-20386
- CVE-2025-20388
- CVE-2025-20389
- CVE-2025-20384
- CVE-2025-20382
- CVE-2025-20383
Affected Vendors
- Cisco
Affected Products
- Splunk Universal Forwarder for Windows 10.0
- Splunk Universal Forwarder for Windows 9.4
- Splunk Universal Forwarder for Windows 9.3
- Splunk Universal Forwarder for Windows 9.2
- Splunk MCP Server 0.2
- Splunk Enterprise 10.0
- Splunk Enterprise 9.4
- Splunk Enterprise 9.3
- Splunk Enterprise 9.2
- Splunk Cloud Platform 10.1.2507
- Splunk Cloud Platform 10.0.2503
- Splunk Cloud Platform 9.3.2411
- Splunk Secure Gateway 3.9
- Splunk Secure Gateway 3.8
- Splunk Secure Gateway 3.7
Remediation
Refer to Cisco Splunk Security Advisory for patch, upgrade, or suggested workaround information.

