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CVE-2018-20328

Estado: ModificadaMedia (5.4)—

Chamilo LMS version 1.11.8 contains XSS in main/social/group_view.php in the social groups tool, allowing authenticated users to affect other users, under specific conditions of permissions granted by administrators. This is considered "low risk" due to the nature of the feature it exploits.

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-2018-20328",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 3.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 5.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.3
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-12-21T06:29:00.533",
  "references": [
    {
      "url": "https://github.com/chamilo/chamilo-lms/commit/5e61c2b0fcc938ca687b8d4e593b1500aa52a034",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.chamilo.org/projects/1/wiki/Security_issues#Issue-32-2018-11-28-Low-risk-More-XSS-and-path-disclosure-issues",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/chamilo/chamilo-lms/commit/5e61c2b0fcc938ca687b8d4e593b1500aa52a034",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.chamilo.org/projects/1/wiki/Security_issues#Issue-32-2018-11-28-Low-risk-More-XSS-and-path-disclosure-issues",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Chamilo LMS version 1.11.8 contains XSS in main/social/group_view.php in the social groups tool, allowing authenticated users to affect other users, under specific conditions of permissions granted by administrators. This is considered \"low risk\" due to the nature of the feature it exploits."
    },
    {
      "lang": "es",
      "value": "Chamilo LMS 1.11.8 contiene Cross-Site Scripting (XSS) en main/social/group_view.php en la herramienta de grupos sociales, lo que permite que usuarios autenticados afecten a otros usuarios en condiciones específicas de permisos otorgados por los administradores. Se considera que esto tiene un \"riesgo bajo\" debido a la naturaleza de la característica que explota."
    }
  ],
  "lastModified": "2026-06-17T01:52:37.750",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:chamilo:chamilo_lms:1.11.8:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4F7D15FF-5009-4F3B-B583-DD75E5F9B82D"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}