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    CVE-2025-11966

    In Eclipse Vert.x versions [4.0.0, 4.5.21] and [5.0.0, 5.0.4], when "directory listing" is enabled, file and directory names are inserted into generated HTML without proper escaping in the href, title, and link attributes. An attacker who can create or rename files or directories within a served path can craft filenames containing malicious script or HTML content, leading to stored cross-site scripting (XSS) that executes in the context of users viewing the affected directory listing.

    Published:Oct 22, 2025
    Last Modified:Jan 20, 2026
    EPS:Oct 22, 2025
    EPSS Score:0.0007
    CVSS Score:6.4

    Affected Products

    Vendor
    Eclipse
    Product
    Vert.x

    Exploits

    https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/303

    Related CVEs

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    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