‹ Volver al listado

CVE-2021-4251

Estado: ModificadaMedia (6.1)—
Gravedad6.1Media · CVSS 3.1
Probabilidad de explotación0.42 %mayor que el 35 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

Una vulnerabilidad fue encontrada en as y clasificada como problemática. Esta vulnerabilidad afecta a la función getFullURL del archivo include.cdn.php. La manipulación conduce a Cross-Site Scripting. El ataque se puede iniciar de forma remota. El nombre del parche es 4acad1e3d2c34c017473ceea442fb3e3e078b2bd. Se recomienda aplicar un parche para solucionar este problema. El identificador de esta vulnerabilidad es VDB-216208.

CVSS

Puntuación base
6.1
Versión
3.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
0.42 %
Percentil entre todas las CVEs puntuadas
35
Fecha de la puntuación
21/10/2026

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)

AS Project — AS

CWE

Referencias

Mostrar las 4 referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-4251",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-4251",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-14T17:02:19.042675Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cna@vuldb.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.5,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.1
      },
      {
        "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": "cna@vuldb.com",
      "affectedData": [
        {
          "vendor": "unspecified",
          "product": "as",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-12-18T22:15:10.167",
  "references": [
    {
      "url": "https://github.com/andrewsauder/as/commit/4acad1e3d2c34c017473ceea442fb3e3e078b2bd",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/?id.216208",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/andrewsauder/as/commit/4acad1e3d2c34c017473ceea442fb3e3e078b2bd",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://vuldb.com/?id.216208",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-707"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability classified as problematic was found in as. This vulnerability affects the function getFullURL of the file include.cdn.php. The manipulation leads to cross site scripting. The attack can be initiated remotely. The name of the patch is 4acad1e3d2c34c017473ceea442fb3e3e078b2bd. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-216208."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad fue encontrada en as y clasificada como problemática. Esta vulnerabilidad afecta a la función getFullURL del archivo include.cdn.php. La manipulación conduce a Cross-Site Scripting. El ataque se puede iniciar de forma remota. El nombre del parche es 4acad1e3d2c34c017473ceea442fb3e3e078b2bd. Se recomienda aplicar un parche para solucionar este problema. El identificador de esta vulnerabilidad es VDB-216208."
    }
  ],
  "lastModified": "2026-06-17T04:19:21.310",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:as_project:as:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F248945C-5520-4F03-9245-2DA75C60C18A",
              "versionEndExcluding": "2021-11-03"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cna@vuldb.com"
}