Security advisory

{
  "id": "c1da09f6826458aa680bdd6caab526ef25542b4eba086c0e330181aba49c11c2",
  "url": "https://osv.dev/vulnerability/CVE-2018-18245",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-18245",
    "summary": "Nagios Core 4.4.2 has XSS via the alert summary reports of plugin results, as demonstrated by a SCRIPT element delivered by a modified check_load plugin to NRPE.",
    "evidence": "osv:CVE-2018-18245",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-18245",
      "aliases": [
        "CVE-2018-18245"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nagiosenterprises/nagioscore",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5e5246170c299290e657599e139351c6c5f0afd0"
                },
                {
                  "last_affected": "5e5246170c299290e657599e139351c6c5f0afd0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nagios:nagios_core:4.4.2:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.4.2"
                      },
                      {
                        "last_affected": "4.4.2"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.4.2",
            "nagios-4.4.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18245.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:03.409900315Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2018/12/msg00014.html",
        "https://herolab.usd.de/wp-content/uploads/sites/4/2018/12/usd20180026.txt"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-18245",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 440247,
  "published_at": "2018-12-17T15:29:00.327+00:00"
}