Security advisory

{
  "id": "4305273bf2349ead211a0e618c48a34191283530cb71bbab78b81dd47dbab5ba",
  "url": "https://osv.dev/vulnerability/CVE-2019-18210",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-18210",
    "summary": "Persistent XSS in /course/modedit.php of Moodle through 3.7.2 allows authenticated users (Teacher and above) to inject JavaScript into the session of another user (e.g., enrolled student or site administrator) via the introeditor[text] parameter. NOTE: the discoverer and vendor disagree on whether Moodle customers have a reasonable expectation that anyone authenticated as a Teacher can be trusted with the ability to add arbitrary JavaScript (this ability is not documented on Moodle's Teacher_role page). Because the vendor has this expectation, they have stated \"this report has been closed as a false positive, and not a bug.\"",
    "evidence": "osv:CVE-2019-18210",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-18210",
      "aliases": [
        "CVE-2019-18210",
        "GHSA-q6vw-27c6-jv9c"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/moodle/moodle",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "6a30269d98d8e939930f5fea71fc82da6824806e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.7.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.7.2",
            "v3.7.0",
            "v3.7.1",
            "v3.7.0-rc2",
            "v3.7.0-rc1",
            "v3.7.0-beta",
            "v3.6.0",
            "v3.6.0-rc2",
            "v3.6.0-rc3",
            "v3.6.0-rc1",
            "v3.6.0-beta",
            "v3.5.0",
            "v3.5.0-rc1",
            "v3.5.0-beta",
            "v3.4.0",
            "v3.4.0-rc2",
            "v3.4.0-rc3",
            "v3.4.0-rc1",
            "v3.4.0-beta",
            "v3.3.0",
            "v3.3.0-rc3",
            "v3.3.0-rc2",
            "v3.3.0-rc1",
            "v3.3.0-beta",
            "v3.2.0-rc2",
            "v3.2.0",
            "v3.2.0-rc4",
            "v3.2.0-beta",
            "v3.2.0-rc5",
            "v3.2.0-rc3",
            "v3.2.0-rc1",
            "v3.1.0-beta",
            "v3.1.0",
            "v3.1.0-rc2",
            "v3.1.0-rc1",
            "v3.0.0-rc3",
            "v3.0.0",
            "v3.0.0-rc4",
            "v3.0.0-rc2",
            "v3.0.0-rc1",
            "v3.0.0-beta",
            "v2.9.0",
            "v2.9.0-rc2",
            "v2.9.0-rc1",
            "v2.9.0-beta",
            "v2.8.0",
            "v2.8.0-rc2",
            "v2.8.0-rc1",
            "v2.8.0-beta",
            "v2.7.0",
            "v2.7.0-rc2",
            "v2.7.0-rc1",
            "v2.7.0-beta",
            "v2.6.0",
            "v2.6.0-rc1",
            "v2.6.0-beta",
            "v2.5.0",
            "v2.5.0-rc1",
            "v2.5.0-beta",
            "v2.4.0-beta",
            "v2.4.0-rc1",
            "v2.4.0",
            "v2.3.0",
            "v2.3.0-rc1",
            "v2.3.0-beta",
            "v2.2.0",
            "v2.2.0-rc1",
            "v2.2.0-beta",
            "v2.1.0",
            "v2.0.1",
            "v2.0.0",
            "v2.0.0-rc2",
            "v2.0.0-rc1",
            "v1.3.0",
            "v1.2.1",
            "v1.2.0",
            "v1.1.1",
            "v1.1.0",
            "v1.0.9",
            "v1.0.8",
            "v1.0.7",
            "v1.0.6",
            "v1.0.5",
            "v1.0.4",
            "v1.0.3",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-18210.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:16.082708765Z",
      "provider": "osv",
      "references": [
        "https://docs.moodle.org/38/en/Teacher_role",
        "https://gist.github.com/Danbardo/4a6b0fe8cb21ec6d7c54e6ac951bdb0a"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-18210",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429273,
  "published_at": "2020-02-11T14:15:17.877+00:00"
}