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    CVE-2019-25369

    OPNsense 19.1 contains a stored cross-site scripting vulnerability in the system_advanced_sysctl.php endpoint that allows attackers to inject persistent malicious scripts via the tunable parameter. Attackers can submit POST requests with script payloads that are stored and executed in the context of authenticated user sessions when the page is viewed.

    Published:Feb 15, 2026
    Last Modified:Mar 5, 2026
    EPS:Feb 15, 2026
    EPSS Score:0.00028
    CVSS Score:6.4

    Affected Products

    Vendor
    Opnsense
    Product
    Opnsense

    Exploits

    https://www.exploit-db.com/exploits/46351

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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