{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.11.38"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "abb5547a46a96339dfe6079e9b7ecd329bca181a"
            },
            {
              "fixed": "22b1cb1c609b643765c88654155aba27070c927e"
            },
            {
              "fixed": "af6b7002af7c15825e98fc522e2ead0d00cacaa3"
            }
          ],
          "repo": "https://github.com/chamilo/chamilo-lms",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-c4ww-qgf2-v89j"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-611"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33737.json"
  },
  "details": "Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, multiple files use simplexml_load_string() without XXE protection. With LIBXML_NOENT flag, arbitrary server files can be read. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.",
  "id": "CVE-2026-33737",
  "modified": "2026-08-07T11:31:24.064759852Z",
  "published": "2026-04-10T19:05:08.873Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33737.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-c4ww-qgf2-v89j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33737"
    },
    {
      "type": "FIX",
      "url": "https://github.com/chamilo/chamilo-lms/commit/22b1cb1c609b643765c88654155aba27070c927e"
    },
    {
      "type": "FIX",
      "url": "https://github.com/chamilo/chamilo-lms/commit/af6b7002af7c15825e98fc522e2ead0d00cacaa3"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Chamilo LMS has an XML External Entity (XXE) Injection"
}