Overview
CVE-2025-20383 is a medium-severity vulnerability affecting Splunk Enterprise and the Splunk Secure Gateway app in Splunk Cloud Platform. This flaw allows a low-privileged user, lacking “admin” or “power” roles, who subscribes to mobile push notifications to potentially receive sensitive information, namely the title and description of reports or alerts they shouldn’t have access to. This data exposure occurs because the push notifications are not properly checking user permissions before delivering alert details.
Technical Details
The vulnerability resides in the mobile push notification functionality of Splunk. When a report or alert is triggered and configured to send push notifications, the system inadvertently transmits the report’s title and description to subscribed users, regardless of their permissions to view the actual report content. This means a user with limited access can glean information about reports they are not authorized to see, potentially revealing sensitive business or operational data.
The affected Splunk Enterprise versions are:
- Versions below 10.0.2
- Versions 9.4.6 and below
- Versions 9.3.8 and below
- Versions 9.2.10 and below
The affected Splunk Secure Gateway app versions are:
- Versions below 3.9.10
- Versions 3.8.58 and below
- Versions 3.7.28 and below
CVSS Analysis
The Common Vulnerability Scoring System (CVSS) score for CVE-2025-20383 is 4.3 (Medium).
The CVSS vector string provides a detailed breakdown of the score:
(Note: The specific CVSS vector string is not provided in the prompt, and will vary depending on the specific environmental factors. This section would ideally include the vector string.)
Key factors contributing to the score include:
- Attack Vector: Network (AV:N)
- Attack Complexity: Low (AC:L)
- Privileges Required: Low (PR:L)
- User Interaction: None (UI:N)
- Scope: Unchanged (S:U)
- Confidentiality: Partial (C:P)
- Integrity: None (I:N)
- Availability: None (A:N)
This indicates that the vulnerability can be exploited remotely with relative ease, requires minimal privileges, and primarily affects the confidentiality of data.
Possible Impact
The exploitation of CVE-2025-20383 could lead to:
- Data Leakage: Unauthorized users gaining insight into sensitive report titles and descriptions.
- Information Disclosure: Potential compromise of business intelligence and operational secrets.
- Privilege Escalation (Indirect): Gained knowledge may allow malicious actors to perform more targeted attacks.
While the impact is limited to the title and description, this information can be significant depending on the context of the reports and alerts.
Mitigation and Patch Steps
To mitigate the risk associated with CVE-2025-20383, it is crucial to upgrade your Splunk Enterprise and Splunk Secure Gateway app to the patched versions:
- Splunk Enterprise: Upgrade to version 10.0.2, 9.4.6, 9.3.8, or 9.2.10, or later.
- Splunk Secure Gateway: Upgrade to version 3.9.10, 3.8.58, or 3.7.28, or later.
Follow these steps to upgrade:
- Consult the official Splunk documentation for detailed upgrade instructions for your specific environment.
- Back up your Splunk environment before initiating the upgrade process.
- Test the upgrade in a non-production environment before applying it to your production system.
- Verify the patch installation by checking the Splunk version after the upgrade.
Workaround (If immediate patching is not possible): Disable mobile push notifications for sensitive reports and alerts until the patch can be applied. Carefully review the title and description of all alerts to ensure no sensitive information is exposed if push notifications are enabled.
