CVE-2023-0868

Name: CVE-2023-0868
Creator: NVD / NIST
Published: 2023-02-23T15:15:11.09+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2023-0868 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Reflected cross-site scripting in graph results in multiple versions of OpenNMS Meridian and Horizon could allow an attacker access to steal session cookies. Users should upgrade to Meridian 2023.1.0 or newer, or Horizon 31.0.4. 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. . EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

Reflected cross-site scripting in graph results in multiple versions of OpenNMS Meridian and Horizon could allow an attacker access to steal session cookies. Users should upgrade to Meridian 2023.1.0 or newer, or Horizon 31.0.4. 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.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.44%

35.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Opennms	Horizon	< 31.0.4
Opennms	Meridian	< 2023.1.0

References

https://docs.opennms.com/meridian/2022/releasenotes/changelog.html#releasenotes-changelog-Meridian-2022.1.13Release Notes
https://github.com/OpenNMS/opennms/pull/5740Patch, Vendor Advisory
https://docs.opennms.com/meridian/2022/releasenotes/changelog.html#releasenotes-changelog-Meridian-2022.1.13Release Notes
https://github.com/OpenNMS/opennms/pull/5740Patch, Vendor Advisory

Timeline

Published: Feb 23, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-0868?

How severe is CVE-2023-0868?

CVE-2023-0868 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2023-0868?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-0868?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST