Moodle: possible to bypass mfa

{
  "id": "36a3e39e69becde09a44d3d3bfc5b517238770e70f876f838aef2cc014b949df",
  "url": "https://osv.dev/vulnerability/CVE-2025-62398",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Moodle: possible to bypass mfa",
    "summary": "A serious authentication flaw allowed attackers with valid credentials to bypass multi-factor authentication under certain conditions, potentially compromising user accounts.",
    "evidence": "osv:CVE-2025-62398",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-62398",
      "aliases": [
        "BIT-moodle-2025-62398",
        "CVE-2025-62398",
        "GHSA-25wf-7x6c-wmpf"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/moodle/moodle",
              "type": "GIT",
              "events": [
                {
                  "introduced": "ee91c6536f99e1633e2245780c4fe7f47340ed66"
                },
                {
                  "fixed": "381b66b33a9b5f255d31f4508f26ad7c1a9af154"
                },
                {
                  "introduced": "52c0da7c647bd6ba8c5f61882d88959821a1fb41"
                },
                {
                  "fixed": "d1321ff0d53b1be617ccba1d0167fc30b539901c"
                },
                {
                  "introduced": "78e860178314c45441a21e0b99455400b8283d48"
                },
                {
                  "fixed": "1b2d270397613a3889a24f59be0ee6d0292a7556"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.4.0"
                      },
                      {
                        "fixed": "4.4.11"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.5.0"
                      },
                      {
                        "fixed": "4.5.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.0.0"
                      },
                      {
                        "fixed": "5.0.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.4.10",
            "v4.5.6",
            "v5.0.2",
            "v4.5.5",
            "v5.0.1",
            "v4.4.9",
            "v5.0.0",
            "v4.5.4",
            "v4.4.8",
            "v4.5.3",
            "v4.4.7",
            "v4.5.2",
            "v4.4.6",
            "v4.5.1",
            "v4.4.5",
            "v4.5.0",
            "v4.4.4",
            "v4.4.3",
            "v4.4.2",
            "v4.4.1",
            "v4.4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-62398.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.481457131Z",
      "provider": "osv",
      "references": [
        "https://git.moodle.org",
        "https://access.redhat.com/security/cve/CVE-2025-62398",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62398.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-62398",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2404431"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-287"
        ],
        "cna_assigner": "fedora",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "5.0.0"
                  },
                  {
                    "fixed": "5.0.3"
                  },
                  {
                    "introduced": "4.5.0"
                  },
                  {
                    "fixed": "4.5.7"
                  },
                  {
                    "introduced": "4.4.0"
                  },
                  {
                    "fixed": "4.4.11"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62398.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-62398",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 507212,
  "published_at": "2025-10-23T11:28:36.897+00:00"
}