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CVE-2021-33179

Estado: ModificadaMedia (6.1)—

The general user interface in Nagios XI versions prior to 5.8.4 is vulnerable to authenticated reflected cross-site scripting. An authenticated victim, who accesses a specially crafted malicious URL, would unknowingly execute the attached payload.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Nagios — Nagios XI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-33179",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "disclosure@synopsys.com",
      "affectedData": [
        {
          "vendor": "Nagios",
          "product": "Nagios XI",
          "versions": [
            {
              "status": "affected",
              "version": "<5.8.4"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-10-14T15:15:09.093",
  "references": [
    {
      "url": "https://www.synopsys.com/blogs/software-security/cyrc-advisory-nagios-xi",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "disclosure@synopsys.com"
    },
    {
      "url": "https://www.synopsys.com/blogs/software-security/cyrc-advisory-nagios-xi",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "disclosure@synopsys.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The general user interface in Nagios XI versions prior to 5.8.4 is vulnerable to authenticated reflected cross-site scripting. An authenticated victim, who accesses a specially crafted malicious URL, would unknowingly execute the attached payload."
    },
    {
      "lang": "es",
      "value": "La interfaz general de usuario en Nagios XI versiones anteriores a 5.8.4, es vulnerable a un ataque de tipo cross-site scripting reflejado autenticado. Una víctima autenticada, que accede a una URL maliciosa especialmente diseñada, podría ejecutar sin saberlo la carga útil adjunta"
    }
  ],
  "lastModified": "2026-06-17T03:54:18.750",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A848F75F-F83E-432B-8F35-224537640749",
              "versionEndExcluding": "5.8.4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "disclosure@synopsys.com"
}