CVE-2026-20254

June 10, 2026, 6:36 p.m.

5.7
Medium

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 10.3.2512.13, 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 craft a malicious classic dashboard that exfiltrates sensitive data to an external server when a higher-privileged user views it, bypassing the external content restriction through a Cascading Style Sheets (CSS) injection.<br><br>The Trusted Domains security check does not fully validate inline style attribute values, which can allow for outbound requests to untrusted domains and credential exfiltration when a victim views a crafted dashboard.

Product(s) Impacted

Vendor Product Versions
Splunk
  • Splunk Enterprise
  • Splunk Cloud Platform
  • <10.2.4,10.0.7,9.4.12,9.3.13
  • <10.3.2512.13,10.2.2510.15,10.1.2507.23,9.3.2411.132

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-20
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

*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 <10.2.4,10.0.7,9.4.12,9.3.13 / / / / / / /
a splunk splunk_cloud_platform <10.3.2512.13,10.2.2510.15,10.1.2507.23,9.3.2411.132 / / / / / / /

References

https://advisory.splunk.com/advisories/SVD-2026-0604

Tags

CWE-20
[email protected]
2026-06-10
CVE-2026-20254

CVSS Score

5.7 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: HIGH
  • Integrity Impact: NONE
  • Availability Impact: NONE

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

    View Vector String

Timeline

Published: June 10, 2026, 6:16 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 info

Source

[email protected]

*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.