Security advisory

{
  "id": "8d68d4059c8d94ea1d7460c009ecffff55df12be6023a59a739944ddde4d0023",
  "url": "https://osv.dev/vulnerability/CVE-2019-15150",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-15150",
    "summary": "In the OAuth2 Client extension before 0.4 for MediaWiki, a CSRF vulnerability exists due to the OAuth2 state parameter not being checked in the callback function.",
    "evidence": "osv:CVE-2019-15150",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-15150",
      "aliases": [
        "CVE-2019-15150"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/schine/mw-oauth2client",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6a4fe4500ddd72ad4e826d9d63b2d69512bd10d1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:schine.games:mw-oauth2client:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "6a4fe4500ddd72ad4e826d9d63b2d69512bd10d1"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "6a4fe4500ddd72ad4e826d9d63b2d69512bd10d1"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.4"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-15150.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:23.580358277Z",
      "provider": "osv",
      "references": [
        "https://github.com/Schine/MW-OAuth2Client/releases/tag/v0.4",
        "https://seclists.org/bugtraq/2019/Aug/32",
        "https://github.com/Schine/MW-OAuth2Client/commit/6a4fe4500ddd72ad4e826d9d63b2d69512bd10d1"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-15150",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383619,
  "published_at": "2019-08-19T04:15:13.517+00:00"
}