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CVE-2021-26092

Estado: ModificadaMedia (6.1)—

Failure to sanitize input in the SSL VPN web portal of FortiOS 5.2.10 through 5.2.15, 5.4.0 through 5.4.13, 5.6.0 through 5.6.14, 6.0.0 through 6.0.12, 6.2.0 through 6.2.7, 6.4.0 through 6.4.4; and FortiProxy 1.2.0 through 1.2.9, 2.0.0 through 2.0.1 may allow a remote unauthenticated attacker to perform a reflected Cross-site Scripting (XSS) attack by sending a request to the error page with malicious GET parameters.

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 (2)

Fortinet — FortiosFortinet — Fortiproxy

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-26092",
  "cveTags": [],
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        "ssvcData": {
          "id": "CVE-2021-26092",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-10-22T20:19:50.615447Z"
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        "source": "nvd@nist.gov",
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          "baseScore": 4.3,
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          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
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        "cvssData": {
          "scope": "CHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N",
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  "affected": [
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      "affectedData": [
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          "product": "Fortinet FortiOS, FortiProxy",
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  "published": "2022-02-24T03:15:43.407",
  "references": [
    {
      "url": "https://fortiguard.com/psirt/FG-IR-20-199",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@fortinet.com"
    },
    {
      "url": "https://fortiguard.com/psirt/FG-IR-20-199",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "Failure to sanitize input in the SSL VPN web portal of FortiOS 5.2.10 through 5.2.15, 5.4.0 through 5.4.13, 5.6.0 through 5.6.14, 6.0.0 through 6.0.12, 6.2.0 through 6.2.7, 6.4.0 through 6.4.4; and FortiProxy 1.2.0 through 1.2.9, 2.0.0 through 2.0.1 may allow a remote unauthenticated attacker to perform a reflected Cross-site Scripting (XSS) attack by sending a request to the error page with malicious GET parameters."
    },
    {
      "lang": "es",
      "value": "Un fallo en el saneo de la entrada en el portal web SSL VPN de FortiOS versiones 5.2.10 hasta 5.2.15, 5.4.0 hasta 5.4.13, 5.6.0 hasta 5.6.14, 6.0.0 hasta 6.0.12, 6.2.0 hasta 6.2.7, 6.4.0 hasta 6.4.4; y FortiProxy 1. 2.0 hasta 1.2.9, 2.0.0 hasta 2.0.1, pueden permitir a un atacante remoto no autenticado llevar a cabo un ataque de tipo Cross-site Scripting (XSS) reflejado mediante el envío una petición a la página de error con parámetros GET maliciosos"
    }
  ],
  "lastModified": "2026-06-17T03:42:50.890",
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          "negate": false,
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}