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CVE-2020-8776

Estado: ModificadaMedia (5.4)—💥 Exploit

Alfresco Enterprise versiones anteriores a.2.7 y Alfresco Community versiones anteriores a 6.2.0 (rb65251d6-b368), presentan una vulnerabilidad de tipo XSS por medio de la propiedad URL de un archivo.

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)

Alfresco — Alfresco

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-8776",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 3.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 5.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.3
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-03-02T19:15:12.820",
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/156599/Alfresco-5.2.4-Cross-Site-Scripting.html",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://gitlab.com/snippets/1937042",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://issues.alfresco.com/jira/browse/ALF-22110",
      "tags": [
        "Permissions Required",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://packetstormsecurity.com/files/156599/Alfresco-5.2.4-Cross-Site-Scripting.html",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://gitlab.com/snippets/1937042",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://issues.alfresco.com/jira/browse/ALF-22110",
      "tags": [
        "Permissions Required",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Alfresco Enterprise before 5.2.7 and Alfresco Community before 6.2.0 (rb65251d6-b368) has XSS via the URL property of a file."
    },
    {
      "lang": "es",
      "value": "Alfresco Enterprise versiones anteriores a.2.7 y Alfresco Community versiones anteriores a 6.2.0 (rb65251d6-b368), presentan una vulnerabilidad de tipo XSS por medio de la propiedad URL de un archivo."
    }
  ],
  "lastModified": "2026-06-17T03:26:55.523",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:alfresco:alfresco:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2C211389-D254-423E-AD12-E9BAC2AA74DF",
              "versionEndExcluding": "5.2.7"
            },
            {
              "criteria": "cpe:2.3:a:alfresco:alfresco:*:*:*:*:community:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "41012AB8-9AF9-4575-903C-479E1AA03F2A",
              "versionEndExcluding": "6.2.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}