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    CVE-2026-52539

    Outstatic CMS <= 2.1.9 contains a hardcoded JWT signing secret. When the OST_TOKEN_SECRET environment variable is not set, the application falls back to the default value which is publicly visible in the source code repository. An unauthenticated remote attacker can exploit this by forging JWT session tokens with arbitrary user data and full administrative permissions.

    Published:Jul 30, 2026
    Last Modified:Aug 4, 2026
    EPS:Jul 30, 2026
    EPSS Score:0.00303
    CVSS Score:9.1

    Affected Products

    Vendor
    Avitorio
    Product
    Outstatic

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-798 Use of Hard-coded Credentials

    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