CVE-2025-53121 MEDIUM

CVE-2025-53121: Stored XSS in multiple 33.0.8files in opennms/opennms

Vendor The Opennms Group
Product Horizon
Weakness CWE-79 · XSS
Published June 26, 2025
Last update June 26, 2025

CVSS base score

6.9/10
Attack vector Adjacent
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 26, 2025 CVE published
June 26, 2025 Record updated

Related vulnerabilities

04Related CVE