Security Advisory
CVE-2026-84673
8.8
HIGH
Vulnerability Description
Jenkins Customizable Header Plugin 295.v2544b_ca_19b_97 and earlier allows overwriting the plugin's appearance configuration through Stapler data binding, allowing attackers to configure a custom SVG icon containing inline JavaScript, resulting in a stored cross-site scripting (XSS) vulnerability.
Published Date
September 2, 2026
Official Source
NIST NVD Advisory