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    CVE-2025-66645

    NiceGUI is a Python-based UI framework. Versions 3.3.1 and below are vulnerable to directory traversal through the App.add_media_files() function, which allows a remote attacker to read arbitrary files on the server filesystem. This issue is fixed in version 3.4.0.

    Published:Dec 9, 2025
    Last Modified:Dec 19, 2025
    EPS:Dec 9, 2025
    EPSS Score:0.00823
    CVSS Score:7.5

    Affected Products

    Vendor
    Nicegui
    Product
    Nicegui
    Vendor
    Zauberzeug
    Product
    Nicegui

    Exploits

    https://github.com/zauberzeug/nicegui/security/advisories/GHSA-hxp3-63hc-5366https://github.com/zauberzeug/nicegui/security/advisories/GHSA-hxp3-63hc-5366

    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