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    CVE-2023-53689

    Nagios Fusion versions prior to 4.2.0 contain a reflected cross-site scripting (XSS) vulnerability in the license key configuration flow that can result in execution of attacker-controlled script in the browser of a user who follows a crafted URL. While the application server itself is not directly corrupted by the reflected XSS, the resulting browser compromise can lead to credential/session theft and unauthorized administrative actions.

    Published:Oct 30, 2025
    Last Modified:Nov 17, 2025
    EPS:Oct 30, 2025
    EPSS Score:0.00122
    CVSS Score:4.8

    Affected Products

    Vendor
    Nagios
    Product
    Fusion

    Exploits

    No exploit reference

    Related CVEs

    CVE-2017-20209 (CVSS 5.1) — Nagios Fusion versions prior to 4.0.1 are vulnerable to cross-site scripting (XSS) via the Users and Servers p…
    CVE-2018-25119 (CVSS 5.1) — Nagios Fusion versions prior to 4.1.5 are vulnerable to cross-site scripting (XSS) via the "fusionwindow" para…
    CVE-2023-53690 (CVSS 6.2) — Nagios Fusion versions prior to 4.2.0 contain a stored cross-site scripting (XSS) vulnerability in the LDAP/AD…
    CVE-2023-7312 (CVSS 6.2) — Nagios Fusion versions prior to 4.2.0 contain a stored cross-site scripting (XSS) vulnerability when adding or…
    CVE-2025-34269 — This CVE ID has been rejected or withdrawn by its CVE Numbering Authority as it is a duplicate of CVE-2025-604…
    CVE-2025-34249 — This CVE ID has been rejected or withdrawn by its CVE Numbering Authority as it is a duplicate of CVE-2025-604…
    CVE-2025-60424 (CVSS 7.6) — A lack of rate limiting in the OTP verification component of Nagios Fusion v2024R1.2 and v2024R2 allows attack…
    CVE-2025-60425 (CVSS 8.6) — Nagios Fusion v2024R1.2 and v2024R2 does not invalidate already existing session tokens when the two-factor au…
    CVE-2020-28911 (CVSS 6.5) — Incorrect Access Control in Nagios Fusion 4.1.8 and earlier allows low-privileged authenticated users to extra…
    CVE-2020-28909 (CVSS 8.8) — Incorrect File Permissions in Nagios Fusion 4.1.8 and earlier allows for Privilege Escalation to root via modi…

    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