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CVE-2021-30203

Estado: ModificadaMedia (6.1)—💥 Exploit

A reflected cross-site scripting (XSS) vulnerability in the zero parameter of dzzoffice 2.02.1_SC_UTF8 allows attackers to execute arbitrary web scripts or HTML.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (1)

Dzzoffice — Dzzoffice

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-30203",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2021-30203",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-12-04T21:02:09.651338Z"
        }
      }
    ],
    "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": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2023-06-27T14:15:09.667",
  "references": [
    {
      "url": "https://github.com/zyx0814/dzzoffice/issues/183",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/zyx0814/dzzoffice/issues/183",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
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    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A reflected cross-site scripting (XSS) vulnerability in the zero parameter of dzzoffice 2.02.1_SC_UTF8 allows attackers to execute arbitrary web scripts or HTML."
    }
  ],
  "lastModified": "2026-06-17T03:49:52.007",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dzzoffice:dzzoffice:2.02.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0ECA901D-850D-468C-B516-01F29417313D"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}