Nagios XI < 5.8.6 Core Config Manager (CCM) Reflected XSS via Test Command

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2021-47694",
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "dateUpdated": "2025-10-31T15:02:06.747Z",
    "dateReserved": "2025-10-29T19:30:49.133Z",
    "datePublished": "2025-10-30T21:32:43.970Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck",
        "dateUpdated": "2025-10-30T21:32:43.970Z"
      },
      "title": "Nagios XI < 5.8.6 Core Config Manager (CCM) Reflected XSS via Test Command",
      "descriptions": [
        {
          "lang": "en",
          "value": "The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.4 / Nagios XI 5.8.6 contains a reflected cross-site scripting (XSS) vulnerability via the Test Command functionality. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.",
          "supportingMedia": [
            {
              "type": "text/html",
              "base64": false,
              "value": "The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.4 / Nagios XI 5.8.6 contains a reflected cross-site scripting (XSS) vulnerability via&nbsp;the Test Command functionality.&nbsp;Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.<br>"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "Nagios",
          "product": "XI",
          "modules": [
            "Web UI – Test Command action/page (parameter echo/rendering)"
          ],
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.8.6"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')",
              "cweId": "CWE-79",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-116 Improper Encoding or Escaping of Output",
              "cweId": "CWE-116",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://www.nagios.com/changelog/nagios-xi/",
          "tags": [
            "release-notes",
            "patch"
          ]
        },
        {
          "url": "https://www.vulncheck.com/advisories/nagios-xi-ccm-reflected-xss-via-test-command",
          "tags": [
            "third-party-advisory"
          ]
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-591",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-591 Reflected XSS"
            }
          ]
        }
      ],
      "metrics": [
        {
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Nagios addresses this vulnerability as \"Fixed reflective XSS in the test command due to double encoded html entities.\"",
          "supportingMedia": [
            {
              "type": "text/html",
              "base64": false,
              "value": "<span style=\"background-color: rgb(255, 255, 255);\">Nagios addresses this vulnerability as \"</span>Fixed reflective XSS in the test command due to double encoded html entities<span style=\"background-color: rgb(244, 247, 251);\">.</span><span style=\"background-color: rgb(255, 255, 255);\">\"</span><br>"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Amit Raut of Trend Micro Security Research working with Trend Micro Zero Day Initiative",
          "type": "finder"
        }
      ]
    },
    "adp": [
      {
        "providerMetadata": {
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP",
          "dateUpdated": "2025-10-31T15:02:06.747Z"
        },
        "title": "CISA ADP Vulnrichment",
        "metrics": [
          {}
        ]
      }
    ]
  }
}