CVE-2026-31953

{
  "id": "CVE-2026-31953",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-24T01:16:11.000",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Xibo is an open source digital signage platform with a web content management system and Windows display player software. A stored Cross-Site Scripting (XSS) vulnerability in versions prior to 4.4.1 allows an authenticated user with notification creation permissions to inject arbitrary JavaScript into the notification body. When the notification is set as an \"interrupt,\" the payload executes automatically in the browser of any targeted user upon login, requiring zero user interaction. Exploitation of the vulnerability is possible on behalf of an authorized user who has both of the following privileges, which are not granted to non-admins as standard: Access to the Notification Centre to view past notifications, and include \"Add Notification\" button to allow for the creation of new notifications. Users should upgrade to version 4.4.1 which fixes this issue. Upgrading to a fixed version is necessary to remediate. Users unable to upgrade should revoke such privileges from users they do not trust."
    },
    {
      "lang": "es",
      "value": "Xibo es una plataforma de señalización digital de código abierto con un sistema de gestión de contenido web y software de reproductor de pantalla para Windows. Una vulnerabilidad de cross-site scripting (XSS) almacenado en versiones anteriores a la 4.4.1 permite a un usuario autenticado con permisos de creación de notificaciones inyectar JavaScript arbitrario en el cuerpo de la notificación. Cuando la notificación se configura como una ’interrupción’, la carga útil se ejecuta automáticamente en el navegador de cualquier usuario objetivo al iniciar sesión, sin requerir interacción del usuario. La explotación de la vulnerabilidad es posible en nombre de un usuario autorizado que tenga ambos de los siguientes privilegios, que no se otorgan a los no administradores de forma estándar: Acceso al Centro de Notificaciones para ver notificaciones pasadas, e incluir el botón ’Añadir Notificación’ para permitir la creación de nuevas notificaciones. Los usuarios deben actualizar a la versión 4.4.1 que corrige este problema. La actualización a una versión corregida es necesaria para remediarlo. Los usuarios que no puedan actualizar deben revocar dichos privilegios a los usuarios en los que no confíen."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "xibosignage",
          "product": "xibo-cms",
          "versions": [
            {
              "version": "< 4.4.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
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        "source": "[email protected]",
        "type": "Secondary",
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          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 2.7
      },
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
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          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
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        "impactScore": 2.7
      }
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    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-24T17:06:13.418352Z",
          "id": "CVE-2026-31953",
          "options": [
            {
              "exploitation": "none"
            },
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          "role": "CISA Coordinator",
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  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
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  "configurations": [
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  "references": [
    {
      "url": "https://github.com/xibosignage/xibo-cms/releases/tag/4.4.1",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-85w9-c833-q4w2",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
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    }
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}