Stored cross-site scripting in Splunk Enterprise - CVE-2026-20162
Published: March 13, 2026
Vulnerability identifier: #VU123982
CSH Severity: Low
CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-20162
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when creating a View (Settings - User Interface - Views) at the /manager/launcher/data/ui/views/_new endpoint. A remote user can upload a specially crafted file and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Affected software
Splunk Enterprise
How to mitigate CVE-2026-20162
Install updates from vendor's website.
Splunk Enterprise - addressed in versions 9.3.9, 9.4.9, 10.0.3, 10.2.0