Security advisory

{
  "id": "63c253e32c33bedd20d7c3d710e9950a6561f84b8e63a581423addd38e0219fe",
  "url": "https://osv.dev/vulnerability/CVE-2020-13977",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-13977",
    "summary": "Nagios 4.4.5 allows an attacker, who already has administrative access to change the \"URL for JSON CGIs\" configuration setting, to modify the Alert Histogram and Trends code via crafted versions of the archivejson.cgi, objectjson.cgi, and statusjson.cgi files. NOTE: this vulnerability has been mistakenly associated with CVE-2020-1408.",
    "evidence": "osv:CVE-2020-13977",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-13977",
      "aliases": [
        "CVE-2020-13977"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nagiosenterprises/nagioscore",
              "type": "GIT",
              "events": [
                {
                  "introduced": "73a6b070e46c63aa6e2be731133c1b078cbee35c"
                },
                {
                  "last_affected": "73a6b070e46c63aa6e2be731133c1b078cbee35c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nagios:nagios:4.4.5:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.4.5"
                      },
                      {
                        "last_affected": "4.4.5"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.4.5",
            "nagios-4.4.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13977.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:53.738412038Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5P6NHNG2SJAM6DXVTXQH3AOJ4WQVKJUE/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H7T6MSDWMBJEVVFSOK7DOYJJWDAFQCEQ/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JUEIABR4Y6L5J5MZDFWU46ZWXMJO64U3/",
        "https://github.com/sawolf/nagioscore/tree/url-injection-fix",
        "https://www.nagios.org/projects/nagios-core/history/4x/",
        "https://anhtai.me/nagios-core-4-4-5-url-injection/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "32"
                  },
                  {
                    "last_affected": "32"
                  },
                  {
                    "introduced": "33"
                  },
                  {
                    "last_affected": "33"
                  },
                  {
                    "introduced": "34"
                  },
                  {
                    "last_affected": "34"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-13977",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 437994,
  "published_at": "2020-06-09T14:15:10.063+00:00"
}