Advisory Published

CVE-2021-25935: XSS

First published: Tue May 25 2021(Updated: )

In OpenNMS Horizon, versions opennms-17.0.0-1 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-2020.1.7-1 are vulnerable to Stored Cross-Site Scripting, since the function `add()` performs improper validation checks on the input sent to the `foreign-source` parameter. Due to this flaw an attacker could bypass the existing regex validation and inject an arbitrary script which will be stored in the database.


Affected SoftwareAffected VersionHow to fix
OpenNMS Horizon>=17.0.0<=27.1.0
OpenNMS Meridian>=2015.1.0<=2019.1.18
OpenNMS Meridian>=2020.1.0<=2020.1.7

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Frequently Asked Questions

  • What is the severity of CVE-2021-25935?

    The severity of CVE-2021-25935 is medium with a severity value of 5.4.

  • Which versions of OpenNMS Horizon are affected by CVE-2021-25935?

    OpenNMS Horizon versions opennms-17.0.0-1 through opennms-27.1.0-1 are affected by CVE-2021-25935.

  • Which versions of OpenNMS Meridian are affected by CVE-2021-25935?

    OpenNMS Meridian versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1 and meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.7-1 are affected by CVE-2021-25935.

  • What is the vulnerability of CVE-2021-25935?

    CVE-2021-25935 is a Stored Cross-Site Scripting vulnerability.

  • How can I fix CVE-2021-25935?

    To fix CVE-2021-25935, update OpenNMS Horizon to version opennms-27.1.0-1 or later, or update OpenNMS Meridian to version meridian-foundation-2019.1.18-1 or later for meridian-foundation-2015.1.0-1 through meridian-foundation-2020.1.7-1.


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