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CVE-2019-15987

Estado: ModificadaMedia (5.3)—

A vulnerability in web interface of the Cisco Webex Event Center, Cisco Webex Meeting Center, Cisco Webex Support Center, and Cisco Webex Training Center could allow an unauthenticated, remote attacker to guess account usernames. The vulnerability is due to missing CAPTCHA protection in certain URLs. An attacker could exploit this vulnerability by sending a crafted request to the web interface. A successful exploit could allow the attacker to know if a given username is valid and find the real name of the 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 (6)

Cisco — Webex Event CenterCisco — Webex Meeting CenterCisco — Webex Meetings OnlineCisco — Webex Meetings ServerCisco — Webex Support CenterCisco — Webex Training Center

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2019-15987",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2019-15987",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-11-19T17:22:21.467673Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "psirt@cisco.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
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        "source": "nvd@nist.gov",
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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
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      }
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  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "Cisco",
          "product": "Cisco WebEx Event Center",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "n/a",
              "versionType": "custom"
            }
          ]
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  ],
  "published": "2019-11-26T04:15:11.903",
  "references": [
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-webex-centers-infodis",
      "tags": [
        "Vendor Advisory"
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      "source": "psirt@cisco.com"
    },
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-webex-centers-infodis",
      "tags": [
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    },
    {
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-287"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in web interface of the Cisco Webex Event Center, Cisco Webex Meeting Center, Cisco Webex Support Center, and Cisco Webex Training Center could allow an unauthenticated, remote attacker to guess account usernames. The vulnerability is due to missing CAPTCHA protection in certain URLs. An attacker could exploit this vulnerability by sending a crafted request to the web interface. A successful exploit could allow the attacker to know if a given username is valid and find the real name of the user."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la interfaz web de Cisco Webex Event Center, Cisco Webex Meeting Center, Cisco Webex Support Center y Cisco Webex Training Center, podría permitir a un atacante remoto no autenticado adivinar los nombres de usuario de las cuentas. La vulnerabilidad es debido a la falta de protección CAPTCHA en determinadas URL. Un atacante podría explotar esta vulnerabilidad al enviar una petición diseñada a la interfaz web. Una explotación con éxito podría permitirle al atacante saber si un nombre de usuario determinado es válido y conseguir el nombre real del usuario."
    }
  ],
  "lastModified": "2026-06-17T02:21:29.093",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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            },
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              "vulnerable": true,
              "matchCriteriaId": "F12AF70E-2201-4F5D-A929-A1A057B74252"
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    {
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  "sourceIdentifier": "psirt@cisco.com"
}