CVE-2025-53121 - CVE House
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Status published Medium CVE-2025-53121

Stored XSS in multiple 33.0.8files in opennms/opennms

Vulnerability Description

Multiple stored XSS were found on different nodes with unsanitized parameters in OpenMNS Horizon 33.0.8 and versions earlier than 33.1.6 on multiple platforms that allow an attacker to store on database and then inject HTML and/or Javascript on the page. The solution is to upgrade to Horizon 33.1.6, 33.1.7 or Meridian 2024.2.6, 2024.2.7 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet. OpenNMS thanks Fábio Tomé for reporting this issue.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Fábio Tomé

Affected Vendor

The OpenNMS Group

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Affected Software

Horizon, Meridian
Vulnerable Versions:
33.0.8, 0, 2024.1.4, 2023.1.20, 2023.0.0, 2024.0.0

Timeline

Official Publish: June 26th, 2025
Last Modified: June 26th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)