XSS in Opennms Horizon
CVE-2023-0846
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.005 (39.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.
Affected products
- Opennms Horizon
- Opennms Meridian
- The Opennms Group Horizon — versions 26.1.0
- The Opennms Group Meridian — versions 2020.1.0, 2021.1.0, 2022.1.0
Weakness classification (CWE)
References
- security@opennms.com (Patch)
- security@opennms.com (Release Notes)
Frequently asked questions
- What is CVE-2023-0846?
- CVE-2023-0846 is a medium-severity vulnerability in Opennms Horizon, classified under Cross-site Scripting. CVSS score: 6.7/10. Published 2023-02-22.
- How severe is CVE-2023-0846?
- Medium severity. CVSS v3 base score is 6.7 out of 10.