{
  "affected": [
    {
      "affectedData": [
        {
          "product": "chamilo-lms",
          "vendor": "chamilo",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.11.36"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "87C4F8D8-CDE4-42B6-8661-0F7823DC1079",
              "versionEndExcluding": "1.11.36",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Chamilo LMS is a learning management system. Version 1.11.34 and prior contains a SQL Injection vulnerability in the statistics AJAX endpoint. The parameters date_start and date_end from $_REQUEST are embedded directly into a raw SQL string without proper sanitization. Although Database::escape_string() is called downstream, its output is immediately neutralized by str_replace(\"\\\u0027\", \"\u0027\", ...), which restores any injected single quotes \u2014 effectively bypassing the escaping mechanism entirely. This allows an authenticated attacker to inject arbitrary SQL statements into the database query, enabling blind time-based and conditional data extraction. This issue has been patched in version 1.11.36."
    },
    {
      "lang": "es",
      "value": "Chamilo LMS es un sistema de gesti\u00f3n de aprendizaje. La versi\u00f3n 1.11.34 y anteriores contiene una vulnerabilidad de inyecci\u00f3n SQL en el endpoint AJAX de estad\u00edsticas. Los par\u00e1metros date_start y date_end de $_REQUEST se incrustan directamente en una cadena SQL sin procesar sin una sanitizaci\u00f3n adecuada. Aunque Database::escape_string() se llama m\u00e1s adelante, su salida es neutralizada inmediatamente por str_replace(\\\u0027, \"\u0027\", ...), lo que restaura cualquier comilla simple inyectada \u2014 eludiendo efectivamente el mecanismo de escape por completo. Esto permite a un atacante autenticado inyectar sentencias SQL arbitrarias en la consulta de la base de datos, lo que permite la extracci\u00f3n de datos ciega basada en tiempo y condicional. Este problema ha sido parcheado en la versi\u00f3n 1.11.36."
    }
  ],
  "id": "CVE-2026-30881",
  "lastModified": "2026-06-17T10:33:05.087",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-30881",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-03-16T20:16:05.528581Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-03-16T20:16:18.640",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.36"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-5ggx-x2cv-4h44"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}