Security advisory

{
  "id": "c5bf336d27c484ed22e1b2d5fe19e1715479ae6a48cdf40c338872d8d63a6548",
  "url": "https://osv.dev/vulnerability/CVE-2021-43584",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-43584",
    "summary": "DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios Nagios Cross-Platform Agent (NCPA) before 2.4.0 allows attackers to run arbitrary code via the name element when filtering for a log.",
    "evidence": "osv:CVE-2021-43584",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-43584",
      "aliases": [
        "CVE-2021-43584"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nagiosenterprises/ncpa",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9e06ef7e0738eb7ac6f8b5a832e0a679ab3630d6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nagios:nagios_cross_platform_agent:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.4.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.3.1",
            "v2.3.0",
            "v2.2.2",
            "v2.2.1",
            "v2.2.0",
            "v2.1.9",
            "v2.1.8",
            "v2.1.7",
            "v2.1.6",
            "v2.1.5",
            "v2.1.4",
            "v2.1.3",
            "v2.1.2",
            "v2.0.4",
            "v2.1.1",
            "v2.1.0",
            "v2.0.6",
            "v2.0.5",
            "v2.0.3",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v1.8.1",
            "v1.8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43584.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:08.852432737Z",
      "provider": "osv",
      "references": [
        "https://github.com/NagiosEnterprises/ncpa/issues/830"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-43584",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384897,
  "published_at": "2024-01-24T20:15:53.61+00:00"
}