FKIE_CVE-2026-8438

Vulnerability from fkie_nvd - Published: 2026-06-06 02:16 - Updated: 2026-07-23 07:10
Severity
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Summary
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.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/admin/wp-security-list-debug.php#L43
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/classes/wp-security-debug-logger.php#L81
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/classes/wp-security-general-init-tasks.php#L887
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/classes/wp-security-utility.php#L1547
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/admin/wp-security-list-debug.php#L43
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/classes/wp-security-debug-logger.php#L81
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/classes/wp-security-general-init-tasks.php#L887
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/classes/wp-security-utility.php#L1547
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset/3558989/
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/d2b7ed73-a654-40ef-8d80-6171393da8e7?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "All-In-One Security (AIOS) \u2013 Security and Firewall",
          "vendor": "davidanderson",
          "versions": [
            {
              "lessThanOrEqual": "5.4.7",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The All-In-One Security (AIOS) \u2013 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 \u0027Disable REST API for non-logged in users\u0027 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($_SERVER[\u0027REQUEST_URI\u0027]), which decodes URL-encoded payloads into literal HTML characters. This decoded, unsanitized value is concatenated directly into a debug log message and stored in the database. When an administrator navigates to the AIOS Dashboard Debug Logs page, the column_default() method returns the raw database value without escaping, and the parent list table echoes it directly, causing JavaScript execution in the administrator\u0027s browser session. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute when an administrator views the debug log page, enabling nonce theft, privileged AJAX/REST actions, and potential full site compromise."
    },
    {
      "lang": "es",
      "value": "El plugin All-In-One Security (AIOS) - Security and Firewall para WordPress es vulnerable a Cross-Site Scripting Almacenado en versiones hasta la 5.4.7 inclusive. Esto se debe a una sanitizaci\u00f3n de entrada insuficiente en la funci\u00f3n get_rest_route() y a la falta de escape de salida en el m\u00e9todo column_default() de la tabla de lista de registros de depuraci\u00f3n. Cuando la caracter\u00edstica \u0027Deshabilitar API REST para usuarios no autenticados\u0027 (aiowps_disallow_unauthorized_rest_requests) est\u00e1 habilitada junto con el registro de depuraci\u00f3n (aiowps_enable_debug), un atacante no autenticado puede incrustar HTML o JavaScript arbitrario en la ruta de la solicitud REST. La ruta se recupera a trav\u00e9s de urldecode($_SERVER[\u0027REQUEST_URI\u0027]), que decodifica cargas \u00fatiles codificadas en URL en caracteres HTML literales. Este valor decodificado y no sanitizado se concatena directamente en un mensaje de registro de depuraci\u00f3n y se almacena en la base de datos. Cuando un administrador navega a la p\u00e1gina de Registros de Depuraci\u00f3n del Panel de AIOS, el m\u00e9todo column_default() devuelve el valor crudo de la base de datos sin escape, y la tabla de lista padre lo muestra directamente, causando la ejecuci\u00f3n de JavaScript en la sesi\u00f3n del navegador del administrador. Esto hace posible que atacantes no autenticados inyecten scripts web arbitrarios que se ejecutan cuando un administrador ve la p\u00e1gina del registro de depuraci\u00f3n, lo que permite el robo de nonces, acciones AJAX/REST privilegiadas y un posible compromiso total del sitio."
    }
  ],
  "id": "CVE-2026-8438",
  "lastModified": "2026-07-23T07:10:00.113",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.7,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-8438",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-06T11:35:33.670566Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-06T02:16:21.453",
  "references": [
    {
      "source": "security@wordfence.com",
      "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"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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