Moodle: moodle allows course self-enrolment before completing mfa

{
  "id": "a2ebc1a741e4da74c259f85b4b0816fa8bb8a4ad9bc9ddb2b7abb8655d6a729d",
  "url": "https://osv.dev/vulnerability/CVE-2025-3634",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Moodle: moodle allows course self-enrolment before completing mfa",
    "summary": "A security vulnerability was discovered in Moodle that allows students to enroll themselves in courses without completing all the necessary safety checks. Specifically, users can sign up for courses prematurely, even if they haven't finished two-step verification processes.",
    "evidence": "osv:CVE-2025-3634",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-3634",
      "aliases": [
        "BIT-moodle-2025-3634",
        "CVE-2025-3634",
        "GHSA-qhc7-xhc2-7p7w"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/moodle/moodle",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fe7aff8093240cc373f1ddaa66ecb91c4bc0a09f"
                },
                {
                  "fixed": "73fc31dabf4feb33ef02167bd98063a3ceef89bb"
                },
                {
                  "introduced": "ee91c6536f99e1633e2245780c4fe7f47340ed66"
                },
                {
                  "fixed": "f22eed6b67af8d0c25732d549680482e1867cd34"
                },
                {
                  "introduced": "52c0da7c647bd6ba8c5f61882d88959821a1fb41"
                },
                {
                  "fixed": "8f0c7bb53cd3ead755e941183e6d3bd0ac717a19"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.3.0"
                      },
                      {
                        "fixed": "4.3.12"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.4.0"
                      },
                      {
                        "fixed": "4.4.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.5.0"
                      },
                      {
                        "fixed": "4.5.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.5.3",
            "v4.4.7",
            "v4.3.11",
            "v4.5.2",
            "v4.4.6",
            "v4.3.10",
            "v4.5.1",
            "v4.4.5",
            "v4.3.9",
            "v4.5.0",
            "v4.4.4",
            "v4.3.8",
            "v4.4.3",
            "v4.3.7",
            "v4.3.6",
            "v4.4.2",
            "v4.3.5",
            "v4.4.1",
            "v4.3.4",
            "v4.4.0",
            "v4.3.3",
            "v4.3.2",
            "v4.3.1",
            "v4.3.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-3634.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.545834566Z",
      "provider": "osv",
      "references": [
        "https://git.moodle.org",
        "https://access.redhat.com/security/cve/CVE-2025-3634",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/3xxx/CVE-2025-3634.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-3634",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2359707"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-287"
        ],
        "cna_assigner": "fedora",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "4.5.0"
                  },
                  {
                    "fixed": "4.5.4"
                  },
                  {
                    "introduced": "4.4.0"
                  },
                  {
                    "fixed": "4.4.8"
                  },
                  {
                    "introduced": "4.3.0"
                  },
                  {
                    "fixed": "4.3.12"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/3xxx/CVE-2025-3634.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-3634",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521426,
  "published_at": "2025-04-25T14:02:05.222+00:00"
}