Security advisory

{
  "id": "46ed0c33d4dbf080d832be83a865a64956c706db5e075332bd6ad5dc29b90991",
  "url": "https://osv.dev/vulnerability/CVE-2019-16529",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-16529",
    "summary": "An issue was discovered in the CheckUser extension through 1.35.0 for MediaWiki. Oversighted edit summaries are still visible in CheckUser results in violation of MediaWiki's permissions model.",
    "evidence": "osv:CVE-2019-16529",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-16529",
      "aliases": [
        "CVE-2019-16529"
      ],
      "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-extensions-checkuser",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "aed89d030bb486fdcfc9a92a03ed94fb214493a9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mediawiki:checkuser:*:*:*:*:*:mediawiki:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.35"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "REL1_35",
            "REL1_30",
            "REL1_29",
            "REL1_28",
            "REL1_22",
            "REL1_21",
            "REL1_20",
            "REL1_19"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-16529.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:44.526735595Z",
      "provider": "osv",
      "references": [
        "https://phabricator.wikimedia.org/T207094",
        "https://phabricator.wikimedia.org/rECHU22ddd638ba79903361df88c755232a532cbdbfb3"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-16529",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435908,
  "published_at": "2020-03-19T23:15:18.49+00:00"
}