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CVE-2025-20247

Estado: AnalizadaMedia (6.1)—

A vulnerability in Cisco Webex could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack.

A vulnerability is due to improper filtering of user-supplied input. An attacker could exploit this vulnerability by persuading a user to follow a malicious link. A successful exploit could allow the attacker to conduct a cross-site scripting attack against the targeted user.

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)

Cisco — Webex Meetings

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-20247",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-20247",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-21T17:47:18.834313Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@cisco.com",
        "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": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "Cisco",
          "product": "Cisco Webex Meetings",
          "versions": [
            {
              "status": "affected",
              "version": "N/A"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-05-21T17:15:56.540",
  "references": [
    {
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-xss-7teQtFn8",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in Cisco Webex could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack.\r\n\r A vulnerability is due to improper filtering of user-supplied input. An attacker could exploit this vulnerability by persuading a user to follow a malicious link. A successful exploit could allow the attacker to conduct a cross-site scripting attack against the targeted user."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en Cisco Webex podría permitir que un atacante remoto no autenticado realice un ataque de Cross-Site Scripting (XSS). Esta vulnerabilidad se debe a un filtrado inadecuado de la información proporcionada por el usuario. Un atacante podría explotar esta vulnerabilidad persuadiendo al usuario a seguir un enlace malicioso. Una explotación exitosa podría permitirle realizar un ataque de Cross-Site Scripting contra el usuario objetivo."
    }
  ],
  "lastModified": "2026-06-17T08:41:11.213",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:webex_meetings:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "81774C03-0884-44C6-80EF-DC882BF44C84"
            }
          ],
          "operator": "OR"
        }
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  ],
  "sourceIdentifier": "psirt@cisco.com"
}