{"cve":"CVE-2023-0870","nvd":{"published":"2023-03-22T19:15:11.817","modified":"2026-06-17T05:26:31.423","status":"Modified","description":"A form can be manipulated with cross-site request forgery in multiple versions of OpenNMS Meridian and Horizon. This can potentially allow an attacker to gain access to confidential information and compromise integrity. The solution is to upgrade to Meridian 2023.1.1 or Horizon 31.0.6 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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","score":6.7},"cwes":["CWE-352"],"references":["https://docs.opennms.com/meridian/2023/releasenotes/changelog.html#releasenotes-changelog-Meridian-2023.1.1","https://github.com/OpenNMS/opennms/pull/5835/files","https://docs.opennms.com/meridian/2023/releasenotes/changelog.html#releasenotes-changelog-Meridian-2023.1.1","https://github.com/OpenNMS/opennms/pull/5835/files"],"products":["opennms:horizon","opennms:meridian"],"source":"nvd","synced_at":"2026-10-19T21:37:48.383111019+00:00"},"epss":{"cve":"CVE-2023-0870","score":0.00305,"percentile":0.23323,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jxr6-7qg5-8wv6","url":"https://osv.dev/vulnerability/GHSA-jxr6-7qg5-8wv6","summary":"OpenNMS Meridian and Horizon vulnerable to Cross-Site Request Forgery","modified":"2023-11-08T04:11:12.876132Z","packages":[{"ecosystem":"Maven","name":"org.opennms:opennms-webapp","purl":"pkg:maven/org.opennms/opennms-webapp","ranges":["<31.0.6"],"fixed":["31.0.6"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}