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    CVE-2020-28909

    Incorrect File Permissions in Nagios Fusion 4.1.8 and earlier allows for Privilege Escalation to root via modification of scripts. Low-privileges users are able to modify files that can be executed by sudo.

    Published:May 24, 2021
    Last Modified:Nov 21, 2024
    EPS:May 24, 2021
    EPSS Score:0.00302
    CVSS Score:8.8

    Affected Products

    Vendor
    Nagios
    Product
    Fusion

    Exploits

    https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/

    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-2023-53689 (CVSS 6) — Nagios Fusion versions prior to 4.2.0 contain a reflected cross-site scripting (XSS) vulnerability in the lice…
    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    CVE-2025-34269 — This CVE ID has been rejected or withdrawn by its CVE Numbering Authority as it is a duplicate of CVE-2025-604…
    CVE-2025-34249 — This CVE ID has been rejected or withdrawn by its CVE Numbering Authority as it is a duplicate of CVE-2025-604…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…

    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