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CVE-2025-22931

Estado: AnalizadaAlta (7.5)—

An insecure direct object reference (IDOR) in the component /assets/stafffiles of OS4ED openSIS v7.0 to v9.1 allows unauthenticated attackers to access files uploaded by staff members.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

IDOR en aplicación web expuesta sin autenticación (AV:N/PR:N) permite leer archivos de staff. CWE-639 es acceso directo a objetos, C:H confirma confidencialidad.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network TrafficApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Os4ed — Opensis

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-22931",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-22931",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-04T14:28:35.374293Z"
        }
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    ],
    "cvssMetricV31": [
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        "cvssData": {
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-04-03T14:15:29.823",
  "references": [
    {
      "url": "https://github.com/OS4ED/openSIS-Classic",
      "tags": [
        "Product"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/esusalla/vulnerability-research/tree/main/CVE-2025-22931",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        }
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    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An insecure direct object reference (IDOR) in the component /assets/stafffiles of OS4ED openSIS v7.0 to v9.1 allows unauthenticated attackers to access files uploaded by staff members."
    },
    {
      "lang": "es",
      "value": "Una referencia de objeto directo (IDOR) insegura en el componente /assets/stafffiles de OS4ED openSIS v7.0 a v9.1 permite que atacantes no autenticados accedan a archivos cargados por miembros del personal."
    }
  ],
  "lastModified": "2026-06-17T08:51:04.597",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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          ],
          "operator": "OR"
        }
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  ],
  "sourceIdentifier": "cve@mitre.org"
}