Security advisory

{
  "id": "85c7c985abc4ff1dedffb9eb4e18191864b002bb7a2520f080cdc47b128cf52a",
  "url": "https://osv.dev/vulnerability/CVE-2019-16738",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-16738",
    "summary": "In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup.",
    "evidence": "osv:CVE-2019-16738",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-16738",
      "aliases": [
        "CVE-2019-16738",
        "GHSA-7hwr-f745-5rwq"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/wikimedia/mediawiki",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5cfc9accca2cc2fb94060c309d562913b7bed57c"
                },
                {
                  "fixed": "171d96bc6243f06cccbbed88b27c1cad082b90d6"
                },
                {
                  "introduced": "0fbb878ef366477535a709b0c2564bdcf4b176d1"
                },
                {
                  "fixed": "b6aaa25ce9595e3037f583a9f4100c962a594f3c"
                },
                {
                  "introduced": "a1742c4f4b2c331a44ba1d80bf1431ddfb9ef678"
                },
                {
                  "fixed": "573f48150317f0153d90542d139621460a7638a5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.31.0"
                      },
                      {
                        "fixed": "1.31.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.32.0"
                      },
                      {
                        "fixed": "1.32.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.33.0"
                      },
                      {
                        "fixed": "1.33.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.33.0",
            "1.32.3",
            "1.31.3",
            "1.32.2",
            "1.31.2",
            "1.32.1",
            "1.32.0",
            "1.31.1",
            "1.31.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-16738.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:49.758531995Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7OMG3BMUHGWTAPYTK2NXM6CXF6FYLOUO/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QBAOLXETM5BOYQG6OQVHGB2LNLZUXVN6/",
        "https://seclists.org/bugtraq/2019/Oct/32",
        "https://www.debian.org/security/2019/dsa-4545",
        "https://phabricator.wikimedia.org/T230402"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  },
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "30"
                  },
                  {
                    "last_affected": "30"
                  },
                  {
                    "introduced": "31"
                  },
                  {
                    "last_affected": "31"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-16738",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 437066,
  "published_at": "2019-09-26T02:15:10.833+00:00"
}