CVE-2025-53121

Stored XSS in multiple 33.0.8files in opennms/opennms

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.

Category

6.9
CVSS
Severity: Medium
CVSS 4.0 •
EPSS 0.03%
Affected: The OpenNMS Group Horizon
Affected: The OpenNMS Group Meridian
Published at:
Updated at:

References

Link Tags
https://github.com/OpenNMS/opennms
https://github.com/OpenNMS/opennms/pull/7708

Frequently Asked Questions

What is the severity of CVE-2025-53121?
CVE-2025-53121 has been scored as a medium severity vulnerability.
How to fix CVE-2025-53121?
To fix CVE-2025-53121, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-53121 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-53121 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-53121?
CVE-2025-53121 affects The OpenNMS Group Horizon, The OpenNMS Group Meridian.
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