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    CVE-2024-4023

    A stored cross-site scripting (XSS) vulnerability exists in flatpressblog/flatpress version 1.3. When a user uploads a file with a `.xsig` extension and directly accesses this file, the server responds with a Content-type of application/octet-stream, leading to the file being processed as an HTML file. This allows an attacker to execute arbitrary JavaScript code, which can be used to steal user cookies, perform HTTP requests, and access content of the same origin.

    Published:Mar 20, 2025
    Last Modified:Jun 23, 2025
    EPS:Mar 20, 2025
    EPSS Score:0.00098
    CVSS Score:8.1

    Affected Products

    Vendor
    Flatpress
    Product
    Flatpress

    Exploits

    https://huntr.com/bounties/ed803c13-0858-4c22-93ba-bf2384ab1e9d

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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