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    CVE-2026-84673

    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:Sep 2, 2026
    Last Modified:Sep 3, 2026
    EPS:Sep 2, 2026
    EPSS Score:0.00287
    CVSS Score:8.8

    Affected Products

    Vendor
    Jenkins Project
    Product
    Jenkins Customizable Header Plugin

    Exploits

    No exploit reference

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High