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CVE-2020-26067

Estado: AnalizadaMedia (5.4)—

A vulnerability in the web-based interface of Cisco Webex Teams could allow an authenticated, remote attacker to conduct cross-site scripting attacks. The vulnerability is due to improper validation of usernames. An attacker could exploit this vulnerability by creating an account that contains malicious HTML or script content and joining a space using the malicious account name. A successful exploit could allow the attacker to conduct cross-site scripting attacks and potentially gain access to sensitive browser-based information.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

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 Teams

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2020-26067",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2020-26067",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-11-18T17:21:04.083089Z"
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
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          "confidentialityImpact": "LOW"
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          "versions": [
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              "status": "affected",
              "version": "N/A"
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  "published": "2024-11-18T17:15:09.757",
  "references": [
    {
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-teams-xss-zLW9tD3",
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      "description": [
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    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la interfaz basada en web de Cisco Webex Teams podría permitir que un atacante remoto autenticado realice ataques de cross-site scripting. La vulnerabilidad se debe a una validación incorrecta de los nombres de usuario. Un atacante podría aprovechar esta vulnerabilidad creando una cuenta que contenga contenido HTML o script malicioso y uniéndose a un espacio utilizando el nombre de cuenta malicioso. Una explotación exitosa podría permitir al atacante realizar ataques de cross-site scripting y potencialmente obtener acceso a información confidencial basada en el navegador. Cisco ha publicado actualizaciones de software que solucionan esta vulnerabilidad. No existen workarounds que solucionen esta vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T03:07:32.580",
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