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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Jenkins Project | Jenkins Customizable Header Plugin | ≤ 295.v2544b_ca_19b_97 | — |
Advisories 1
- WID-SEC-2026-3166 Jenkins: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 21, 2026
References
- Jenkins Security Advisory 2026-09-02 vendor-advisory