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CVE-2020-23128

Estado: ModificadaMedia (4.9)—

Chamilo LMS 1.11.10 does not properly manage privileges which could allow a user with Sessions administrator privilege to create a new user then use the edit user function to change this new user to administrator privilege.

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).

Tecnologías afectadas (1)

Chamilo — Chamilo LMS

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-23128",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.2
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-05-06T13:15:09.237",
  "references": [
    {
      "url": "https://support.chamilo.org/projects/chamilo-18/wiki/Security_issues#Issue-41-2020-04-22-Medium-risk-high-impact-CSRF-and-privilege-escalation-via-CSRF",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://toandak.blogspot.com/2020/05/improper-privilege-management-in.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.chamilo.org/projects/chamilo-18/wiki/Security_issues#Issue-41-2020-04-22-Medium-risk-high-impact-CSRF-and-privilege-escalation-via-CSRF",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://toandak.blogspot.com/2020/05/improper-privilege-management-in.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Chamilo LMS 1.11.10 does not properly manage privileges which could allow a user with Sessions administrator privilege to create a new user then use the edit user function to change this new user to administrator privilege."
    },
    {
      "lang": "es",
      "value": "Chamilo LMS versión 1.11.10, no administra apropiadamente los privilegios que podrían permitir a un usuario con privilegios de administrador de Sesiones crear un nuevo usuario y luego usar la función edit user para cambiar este nuevo usuario a privilegio de administrador"
    }
  ],
  "lastModified": "2026-06-17T03:04:32.697",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:chamilo:chamilo_lms:1.11.10:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CB00764C-BB00-42C7-98FE-32BEF2A25C6F"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}