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    CVE-2025-8129

    A vulnerability, which was classified as problematic, was found in KoaJS Koa up to 3.0.0. Affected is the function back in the library lib/response.js of the component HTTP Header Handler. The manipulation of the argument Referrer leads to open redirect. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

    Published:Jul 25, 2025
    Last Modified:Sep 17, 2025
    EPS:Jul 25, 2025
    EPSS Score:0.00031
    CVSS Score:3.5

    Affected Products

    Vendor
    Koajs
    Product
    Koa

    Exploits

    https://github.com/koajs/koa/issues/1892https://github.com/koajs/koa/issues/1892#issue-3213028583https://github.com/koajs/koa/issues/1892

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-178 Cross-Site Flashing

    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