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    CVE-2025-15099

    A vulnerability was identified in simstudioai sim up to 0.5.27. This vulnerability affects unknown code of the file apps/sim/lib/auth/internal.ts of the component CRON Secret Handler. The manipulation of the argument INTERNAL_API_SECRET leads to improper authentication. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The identifier of the patch is e359dc2946b12ed5e45a0ec9c95ecf91bd18502a. Applying a patch is the recommended action to fix this issue.

    Published:Dec 26, 2025
    Last Modified:Jan 8, 2026
    EPS:Dec 26, 2025
    EPSS Score:0.00116
    CVSS Score:7.3

    Affected Products

    Vendor
    Sim
    Product
    Sim
    Vendor
    Simstudioai
    Product
    Sim

    Exploits

    https://gist.github.com/H2u8s/c533741e1b36f6245d41cace89a7f4d2https://gist.github.com/H2u8s/c533741e1b36f6245d41cace89a7f4d2#-steps-to-reproducehttps://github.com/simstudioai/sim/pull/2343https://gist.github.com/H2u8s/c533741e1b36f6245d41cace89a7f4d2#-steps-to-reproduce

    Common Weakness Enumeration

    CWE-287 Improper Authentication

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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