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CVE-2021-40223

Estado: ModificadaMedia (5.4)—💥 PoC

Rittal CMC PU III Web management (version V3.11.00_2) fails to sanitize user input on several parameters of the configuration (User Configuration dialog, Task Configuration dialog and set logging filter dialog). This allows an attacker to backdoor the device with HTML and browser-interpreted content (such as JavaScript or other client-side scripts). The XSS payload will be triggered when the user accesses some specific sections of the application.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (1)

Rittal — CMC PU III 7030.000 Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-40223",
  "cveTags": [],
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        "source": "nvd@nist.gov",
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          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
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  "affected": [
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      "affectedData": [
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      "value": "Rittal CMC PU III Web management (version V3.11.00_2) fails to sanitize user input on several parameters of the configuration (User Configuration dialog, Task Configuration dialog and set logging filter dialog). This allows an attacker to backdoor the device with HTML and browser-interpreted content (such as JavaScript or other client-side scripts). The XSS payload will be triggered when the user accesses some specific sections of the application."
    },
    {
      "lang": "es",
      "value": "Rittal CMC PU III Web management (versión V3.11.00_2) presenta un fallo al sanear la entrada del usuario en varios parámetros de la configuración (diálogo de Configuración de Usuario, diálogo de Configuración de Tareas y diálogo de ajustar filtro de registro). Esto permite a un atacante abrir un backdoor en el dispositivo con contenido HTML e interpretado por el navegador (como JavaScript u otros scripts del lado del cliente). La carga útil de tipo XSS será desencadenada cuando el usuario acceda a algunas secciones específicas de la aplicación"
    }
  ],
  "lastModified": "2026-06-17T04:06:40.073",
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