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.
| Vendor | Product | Versions |
|---|---|---|
| splunk | splunk enterpri | 10.2, 10.0, 9.4, 9.3, 10.3.2512, 10.2.2510, 10.1.2507, 9.3.2411 |
Updated severity to CRITICAL, marked as actively exploited, and added CVE-2026-20254 as a new tag.
Initial creation
