CVE-2026-8438

{
  "id": "CVE-2026-8438",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-8438",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-06T11:35:33.670566Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@wordfence.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@wordfence.com",
      "affectedData": [
        {
          "vendor": "davidanderson",
          "product": "All-In-One Security (AIOS) – Security and Firewall",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.7"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-06-06T02:16:21.453",
  "references": [
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/admin/wp-security-list-debug.php#L43",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/classes/wp-security-debug-logger.php#L81",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/classes/wp-security-general-init-tasks.php#L887",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/classes/wp-security-utility.php#L1547",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/admin/wp-security-list-debug.php#L43",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/classes/wp-security-debug-logger.php#L81",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/classes/wp-security-general-init-tasks.php#L887",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/classes/wp-security-utility.php#L1547",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/changeset/3558989/",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d2b7ed73-a654-40ef-8d80-6171393da8e7?source=cve",
      "source": "security@wordfence.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@wordfence.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The All-In-One Security (AIOS) – Security and Firewall plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 5.4.7. This is due to insufficient input sanitization in the get_rest_route() function and missing output escaping in the column_default() method of the debug log list table. When the 'Disable REST API for non-logged in users' feature (aiowps_disallow_unauthorized_rest_requests) is enabled alongside debug logging (aiowps_enable_debug), an unauthenticated attacker can embed arbitrary HTML or JavaScript in the REST request path. The path is retrieved via urldecode($_SERVER['REQUEST_URI']), which decodes URL-encoded payloads into literal HTML characters. This decoded, unsanitized value is concatenated directly into a debug log message and stored in the database. When an administrator navigates to the AIOS Dashboard Debug Logs page, the column_default() method returns the raw database value without escaping, and the parent list table echoes it directly, causing JavaScript execution in the administrator's browser session. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute when an administrator views the debug log page, enabling nonce theft, privileged AJAX/REST actions, and potential full site compromise."
    },
    {
      "lang": "es",
      "value": "El plugin All-In-One Security (AIOS) - Security and Firewall para WordPress es vulnerable a Cross-Site Scripting Almacenado en versiones hasta la 5.4.7 inclusive. Esto se debe a una sanitización de entrada insuficiente en la función get_rest_route() y a la falta de escape de salida en el método column_default() de la tabla de lista de registros de depuración. Cuando la característica 'Deshabilitar API REST para usuarios no autenticados' (aiowps_disallow_unauthorized_rest_requests) está habilitada junto con el registro de depuración (aiowps_enable_debug), un atacante no autenticado puede incrustar HTML o JavaScript arbitrario en la ruta de la solicitud REST. La ruta se recupera a través de urldecode($_SERVER['REQUEST_URI']), que decodifica cargas útiles codificadas en URL en caracteres HTML literales. Este valor decodificado y no sanitizado se concatena directamente en un mensaje de registro de depuración y se almacena en la base de datos. Cuando un administrador navega a la página de Registros de Depuración del Panel de AIOS, el método column_default() devuelve el valor crudo de la base de datos sin escape, y la tabla de lista padre lo muestra directamente, causando la ejecución de JavaScript en la sesión del navegador del administrador. Esto hace posible que atacantes no autenticados inyecten scripts web arbitrarios que se ejecutan cuando un administrador ve la página del registro de depuración, lo que permite el robo de nonces, acciones AJAX/REST privilegiadas y un posible compromiso total del sitio."
    }
  ],
  "lastModified": "2026-07-23T07:10:00.113",
  "sourceIdentifier": "security@wordfence.com"
}