CVE-2026-20258
June 10, 2026, 6:36 p.m.
7.1
High
Description
In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.3.2512.11, 10.2.2510.15, 10.1.2507.23, and 9.3.2411.132, a low-privileged user that does not hold the "admin" or "power" Splunk roles could store a malicious script in a classic dashboard HTML panel, causing unauthorized JavaScript code to execute in the browser of another user.
The vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The low-privileged user should not be able to exploit the vulnerability at will.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Splunk |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | splunk | splunk_enterprise | <10.2.4 | / | / | / | / | / | / | |
| a | splunk | splunk_enterprise | <10.0.7 | / | / | / | / | / | / | |
| a | splunk | splunk_enterprise | <9.4.12 | / | / | / | / | / | / | |
| a | splunk | splunk_enterprise | <9.3.13 | / | / | / | / | / | / | |
| a | splunk | splunk_cloud_platform | <10.3.2512.11 | / | / | / | / | / | / | |
| a | splunk | splunk_cloud_platform | <10.2.2510.15 | / | / | / | / | / | / | |
| a | splunk | splunk_cloud_platform | <10.1.2507.23 | / | / | / | / | / | / | |
| a | splunk | splunk_cloud_platform | <9.3.2411.132 | / | / | / | / | / | / |
Tags
CVSS Score
CVSS Data - 3.1
- Attack Vector: NETWORK
- Attack Complexity: HIGH
- Privileges Required: LOW
- Scope: UNCHANGED
- Confidentiality Impact: HIGH
- Integrity Impact: HIGH
- Availability Impact: HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Timeline
Published: June 10, 2026, 6:16 p.m.
Last Modified: June 10, 2026, 6:36 p.m.
Last Modified: June 10, 2026, 6:36 p.m.
Status : Undergoing Analysis
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.