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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (40.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
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
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.