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    CVE-2021-47691

    The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.1 / Nagios XI 5.8.2 contains multiple cross-site scripting (XSS) vulnerabilities via the Services page affecting the config_name and service_description fields. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

    Published:Oct 30, 2025
    Last Modified:Nov 17, 2025
    EPS:Oct 30, 2025
    EPSS Score:0.00376
    CVSS Score:5.4

    Affected Products

    Vendor
    Nagios
    Product
    Nagios Xi
    Vendor
    Nagios
    Product
    Xi

    Exploits

    No exploit reference

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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