Medium severity6.7NVD Advisory· Published Feb 22, 2023· Updated Jun 17, 2026
CVE-2023-0846
CVE-2023-0846
Description
Unauthenticated, stored cross-site scripting in the display of alarm reduction keys in multiple versions of OpenNMS Horizon and Meridian could allow an attacker access to confidential session information. 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.opennms:opennmsMaven | < 31.0.3 | 31.0.3 |
Affected products
5- The OpenNMS Group/Horizonv5Range: 26.1.0
- The OpenNMS Group/Meridianv5Range: 2020.1.0
Patches
Vulnerability mechanics
References
5- github.com/OpenNMS/opennms/pull/5506/filesnvdPatchWEB
- github.com/advisories/GHSA-79jr-8fhm-8wv3ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2023-0846ghsaADVISORY
- docs.opennms.com/meridian/2022/releasenotes/changelog.htmlnvdRelease NotesWEB
- issues.opennms.org/browse/NMS-14877ghsaWEB
News mentions
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