CVE-2026-84673: Vulnerability in Jenkins Project Jenkins Customizable Header Plugin
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.
CVE-2026-84673: Vulnerability in Jenkins Project Jenkins Customizable Header Plugin
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.
CVSS v3.1
Score 8.8high
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jenkins
- Date Reserved
- 2026-09-01T21:55:27.035Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a984667acd9273b496cc55e
Added to database: 09/02/2026, 15:53:11 UTC
Last updated: 09/02/2026, 17:07:58 UTC
Views: 4
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