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CVE-2021-25933

4.8 · MEDIUM

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…

Published May 20, 2021CWE-79EPSS 1.04%

Overview

CVE-2021-25933 is a medium-severity vulnerability. It was published on May 20, 2021 and has a CVSS 3.1 base score of 4.8 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/OpenNMS/opennms/commit/8a97e6869d6e49da18b208c837438ace80049c01%2CGitHubgithub.com/OpenNMS/opennms/commit/eb08b5ed4c5548f3e941a1f0d0363ae4439fa98cGitHubgithub.com/OpenNMS/opennms/commit/f3ebfa3da5352b4d57f238b54c6db315ad99f10eRefwww.whitesourcesoftware.com/vulnerability-database/CVE-2021-25933GitHubgithub.com/OpenNMS/opennms/commit/8a97e6869d6e49da18b208c837438ace80049c01%2CGitHubgithub.com/OpenNMS/opennms/commit/eb08b5ed4c5548f3e941a1f0d0363ae4439fa98cGitHubgithub.com/OpenNMS/opennms/commit/f3ebfa3da5352b4d57f238b54c6db315ad99f10eRefwww.whitesourcesoftware.com/vulnerability-database/CVE-2021-25933

How CyberStrike helps

Frequently asked questions

What is CVE-2021-25933?

CVE-2021-25933 is a medium-severity vulnerability. It was published on May 20, 2021 and has a CVSS 3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2021-25933?

This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-25933?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-25933?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-25933 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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