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    CVE-2026-42138

    Dify is an open-source LLM app development platform. Prior to version 1.13.1, using the method POST /api/files/upload, any unauthenticated user can upload an SVG file with XSS. The method POST /v1/files/upload, which requires authentication through the application API, is also vulnerable. This issue has been patched in version 1.13.1.

    Published:May 4, 2026
    Last Modified:May 11, 2026
    EPS:May 4, 2026
    EPSS Score:0.00178
    CVSS Score:6.1

    Affected Products

    Vendor
    Langgenius
    Product
    Dify

    Exploits

    https://github.com/langgenius/dify/security/advisories/GHSA-cg94-8v83-7hjjhttps://github.com/langgenius/dify/security/advisories/GHSA-cg94-8v83-7hjj

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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