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CVE-2020-26733

Estado: ModificadaMedia (5.4)—💥 PoC

Cross Site Scripting (XSS) in Configuration page in SKYWORTH GN542VF Hardware Version 2.0 and Software Version 2.0.0.16 allows authenticated attacker to inject their own script into the page via DDNS Configuration Section.

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.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (1)

Skyworth — Gn542vf Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2020-26733",
  "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,
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    "cvssMetricV31": [
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          "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"
            }
          ]
        }
      ]
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  ],
  "published": "2021-01-14T16:15:17.787",
  "references": [
    {
      "url": "https://github.com/swzhouu/CVE-2020-26733",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/swzhouu/CVE-2020-26733",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cross Site Scripting (XSS) in Configuration page in SKYWORTH GN542VF Hardware Version 2.0 and Software Version 2.0.0.16 allows authenticated attacker to inject their own script into the page via DDNS Configuration Section."
    },
    {
      "lang": "es",
      "value": "Un ataque de tipo Cross Site Scripting (XSS) en la página de Configuración en SKYWORTH GN542VF Hardware Versión 2.0 y Software Versión 2.0.0.16, permite a un atacante autenticado inyectar su propio script en la página por medio de la Sección de Configuración DDNS"
    }
  ],
  "lastModified": "2026-06-17T03:08:20.163",
  "configurations": [
    {
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        {
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            }
          ],
          "operator": "OR"
        }
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      "operator": "AND"
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  ],
  "sourceIdentifier": "cve@mitre.org"
}