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CVE-2023-6957

Estado: ModificadaMedia (5.4)—

The Fluent Forms plugin for WordPress by Fluent Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 5.1.9 due to insufficient input sanitization and output escaping. This makes it possible for attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The exploitation level depends on who is granted the right to create forms by an administrator. This level can be as low as contributor, but by default is admin.

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)

Fluentforms — Contact Form

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2023-6957",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2023-6957",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
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          ],
          "version": "2.0.3",
          "timestamp": "2024-03-14T13:22:24.720480Z"
        }
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    "cvssMetricV31": [
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        "cvssData": {
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          "version": "3.1",
          "baseScore": 4.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 1.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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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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          "vendor": "techjewel",
          "product": "Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder",
          "versions": [
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              "version": "0",
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  "published": "2024-03-13T16:15:09.517",
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      "tags": [
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      "tags": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "security@wordfence.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Fluent Forms plugin for WordPress by Fluent Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 5.1.9 due to insufficient input sanitization and output escaping. This makes it possible for attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The exploitation level depends on who is granted the right to create forms by an administrator. This level can be as low as contributor, but by default is admin."
    },
    {
      "lang": "es",
      "value": "El complemento Fluent Forms para WordPress del complemento Fluent Forms para WordPress es vulnerable a Cross-Site Scripting Almacenado en todas las versiones hasta la 5.1.9 incluida debido a una sanitización de entrada y un escape de salida insuficientes. Esto hace posible que los atacantes inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada. El nivel de explotación depende de a quién un administrador le concede el derecho de crear formularios. Este nivel puede ser tan bajo como colaborador, pero de forma predeterminada es administrador."
    }
  ],
  "lastModified": "2026-06-17T06:51:45.857",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "5.1.10"
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          "operator": "OR"
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  "sourceIdentifier": "security@wordfence.com"
}