Security advisory

{
  "id": "b26a1ad62ea8d6d7998e220f2be48e9f557b7c5efc95b2fba3eb0141d33e80ce",
  "url": "https://osv.dev/vulnerability/CVE-2019-14831",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-14831",
    "summary": "A vulnerability was found in Moodle 3.7 to 3.7.1, 3.6 to 3.6.5, 3.5 to 3.5.7 and earlier unsupported versions, where forum subscribe link contained an open redirect if forced subscription mode was enabled. If a forum's subscription mode was set to \"forced subscription\", the forum's subscribe link contained an open redirect.",
    "evidence": "osv:CVE-2019-14831",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-14831",
      "aliases": [
        "CVE-2019-14831"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/moodle/moodle",
              "type": "GIT",
              "events": [
                {
                  "introduced": "46574904afd39578fa4146bf1fc5c401ac680aa6"
                },
                {
                  "last_affected": "5725188035223fe8d8cf1c4a7c1af361a43ca6b6"
                },
                {
                  "introduced": "cb628a9a08933c2a9f1eae2f3be70ea5d343b419"
                },
                {
                  "last_affected": "c88d732e399b816b69010c2c6ee7deb2da268681"
                },
                {
                  "introduced": "89457b26d192c06325bb6782b85d1025dafbefe9"
                },
                {
                  "last_affected": "b198428e41b0f2fafe4bb0e6db6e53f5b9eda212"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.5.0"
                      },
                      {
                        "last_affected": "3.5.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.6.0"
                      },
                      {
                        "last_affected": "3.6.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.7.0"
                      },
                      {
                        "last_affected": "3.7.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.7.0",
            "v3.6.5",
            "v3.5.7",
            "v3.7.1",
            "v3.5.6",
            "v3.6.4",
            "v3.5.5",
            "v3.6.3",
            "v3.5.4",
            "v3.6.2",
            "v3.6.0",
            "v3.6.1",
            "v3.5.3",
            "v3.5.2",
            "v3.5.1",
            "v3.5.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-14831.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:20.611803187Z",
      "provider": "osv",
      "references": [
        "https://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=32e2e06a8737afb07ee83abb3eacd39f8b181216",
        "https://moodle.org/mod/forum/discuss.php?d=391037"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-14831",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 430299,
  "published_at": "2021-03-19T21:15:12.12+00:00"
}