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CVE-2024-12451

Estado: ModificadaMedia (5.4)—

The HTML5 chat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'HTML5CHAT' shortcode in all versions up to, and including, 1.07 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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)

Proxymis — Html5 Chat

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2024-12451",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-12451",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-01-30T14:36:31.116115Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
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        "cvssData": {
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 3.1
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
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        {
          "vendor": "proxymis",
          "product": "HTML5 Chat",
          "versions": [
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              "version": "0",
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              "lessThanOrEqual": "1.07"
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          ],
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  ],
  "published": "2025-01-30T14:15:32.687",
  "references": [
    {
      "url": "https://plugins.trac.wordpress.org/browser/html5-chat/trunk/index.php#L159",
      "tags": [
        "Patch"
      ],
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/changeset/3443134/",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/98de0a50-8464-4ea6-bf55-add9aab2d716?source=cve",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security@wordfence.com"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@wordfence.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The HTML5 chat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'HTML5CHAT' shortcode in all versions up to, and including, 1.07 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
    },
    {
      "lang": "es",
      "value": "El complemento de chat HTML5 para WordPress es vulnerable a Cross-Site Scripting Almacenado a través del código abreviado 'HTML5CHAT' del complemento en todas las versiones hasta la 1.04 y incluida, debido a la falta de entrada desinfección y al escape de salida en los atributos proporcionados por el usuario. Esto hace posible que los atacantes autenticados, con acceso de nivel de colaborador y superior, inyecten scripts web arbitraria en las páginas que se ejecutarán siempre que un usuario acceda a una página inyectada."
    }
  ],
  "lastModified": "2026-06-17T06:59:44.737",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:proxymis:html5_chat:*:*:*:*:*:wordpress:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C799DDEC-262D-4524-A2E4-7B69163D305A",
              "versionEndIncluding": "1.04"
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      ]
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  ],
  "sourceIdentifier": "security@wordfence.com"
}