CVE-2026-20254

Published Jun 10, 2026

Last updated 4 days ago

Overview

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.
Source
psirt@cisco.com
NVD status
Undergoing Analysis

Risk scores

CVSS 3.1

Type
Primary
Base score
5.7
Impact score
3.6
Exploitability score
2.1
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Severity
MEDIUM

Weaknesses

psirt@cisco.com
CWE-20

Social media

Hype score
Not currently trending

References

Sources include official advisories and independent security research.