← Back to CVE Explorer

CVE-2025-67259

Full vulnerability record from the local CVENow database.

Description

A Broken Access Control vulnerability exists in ClassroomIO v0.1.13 where an authenticated low-privileged "student" user can access unauthorized course-level information by modifying intercepted API requests. Changing a captured POST request to a GET request against the /rest/v1/course PostgREST endpoint results in disclosure of sensitive information including other students details, tutor/admin profiles, and internal course metadata.

Severity
MEDIUM
CVSS score
6.5 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-04-24 16:16:23.907000
Last modified
2026-11-04 20:10:00.263000
View original CVE JSON
{
  "id": "CVE-2025-67259",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-24T16:16:23.907",
  "lastModified": "2026-11-04T20:10:00.263",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Broken Access Control vulnerability exists in ClassroomIO v0.1.13 where an authenticated low-privileged \"student\" user can access unauthorized course-level information by modifying intercepted API requests. Changing a captured POST request to a GET request against the /rest/v1/course PostgREST endpoint results in disclosure of sensitive information including other students details, tutor/admin profiles, and internal course metadata."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de control de acceso roto existe en ClassroomIO v0.1.13 donde un usuario ’estudiante’ autenticado con bajos privilegios puede acceder a información no autorizada a nivel de curso modificando solicitudes de API interceptadas. Cambiar una solicitud POST capturada a una solicitud GET contra el endpoint PostgREST /rest/v1/course resulta en la divulgación de información sensible, incluyendo detalles de otros estudiantes, perfiles de tutores/administradores y metadatos internos del curso."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-24T17:52:32.475728Z",
          "id": "CVE-2025-67259",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        },
        {
          "lang": "en",
          "value": "CWE-285"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://drive.google.com/file/d/1G_IjEURNBcaSmBo4FdOo_27q-4H9MV34/view?usp=drive_link",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/classroomio/classroomio/issues/642",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/classroomio/classroomio/issues/642",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}