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CVE-2025-56200

Estado: ModificadaMedia (6.1)—

A URL validation bypass vulnerability exists in validator.js through version 13.15.15. The isURL() function uses '://' as a delimiter to parse protocols, while browsers use ':' as the delimiter. This parsing difference allows attackers to bypass protocol and domain validation by crafting URLs leading to XSS and Open Redirect attacks.

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)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2025-56200",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-09-30T19:34:38.959485Z"
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  "affected": [
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  "published": "2025-09-30T18:15:50.307",
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      "value": "A URL validation bypass vulnerability exists in validator.js through version 13.15.15. The isURL() function uses '://' as a delimiter to parse protocols, while browsers use ':' as the delimiter. This parsing difference allows attackers to bypass protocol and domain validation by crafting URLs leading to XSS and Open Redirect attacks."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de omisión de validación de URL existe en validator.js hasta la versión 13.15.15. La función isURL() utiliza '://' como delimitador para analizar protocolos, mientras que los navegadores utilizan ':' como delimitador. Esta diferencia de análisis permite a los atacantes omitir la validación de protocolo y dominio al crear URL que conducen a ataques de XSS y redirección abierta."
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  "lastModified": "2026-07-05T02:16:58.160",
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