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    CVE-2021-25933

    In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1 are vulnerable to Stored Cross-Site Scripting, since the function `validateFormInput()` performs improper validation checks on the input sent to the `groupName` and `groupComment` parameters. Due to this flaw, an authenticated attacker could inject arbitrary script and trick other admin users into downloading malicious files which can cause severe damage to the organization using opennms.

    Published:May 20, 2021
    Last Modified:Apr 30, 2025
    EPS:May 20, 2021
    EPSS Score:0.00335
    CVSS Score:4.8

    Affected Products

    Vendor
    Opennms
    Product
    Horizon
    Vendor
    Opennms
    Product
    Meridian

    Exploits

    https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25933https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25933

    Related CVEs

    CVE-2026-19182 (CVSS 4.3) — An incorrect authorization check in the v2 Alarm REST API in OpenNMS Meridian and Horizon allows a low-privile…
    CVE-2026-19135 (CVSS 5.4) — A JEXL expression sandbox bypass exists in multiple versions of OpenNMS Meridian and Horizon. A low-privileged…
    CVE-2023-40314 (CVSS 5.8) — Cross-site scripting in bootstrap.jsp in multiple versions of OpenNMS Meridian and Horizon allows an attack…
    CVE-2023-40612 (CVSS 5.3) — In OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2, the file editor which is accessible to any user wi…
    CVE-2023-40315 (CVSS 5.3) — In OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 and related Meridian versions, any user that has th…
    CVE-2023-40313 (CVSS 7.1) — A BeanShell interpreter in remote server mode runs in OpenMNS Horizon versions earlier than 32.0.2 and in rela…
    CVE-2023-40312 (CVSS 6.7) — Multiple reflected XSS were found on different JSP files with unsanitized parameters in OpenMNS Horizon 31.0.8…
    CVE-2023-40311 (CVSS 6.7) — Multiple stored XSS were found on different JSP files with unsanitized parameters in OpenMNS Horizon 31.0.8 an…
    CVE-2023-0872 (CVSS 8.2) — The Horizon REST API includes a users endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on m…
    CVE-2023-0871 (CVSS 5.4) — XXE injection in /rtc/post/ endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple pl…

    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