{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.31.10"
              },
              {
                "introduced": "1.32.0"
              },
              {
                "fixed": "1.34.4"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0fa7240e6a81be24dc0eb3c250ec2a25a2099faa"
            },
            {
              "introduced": "0fbb878ef366477535a709b0c2564bdcf4b176d1"
            },
            {
              "fixed": "e34e7f20b51ed7514ba6de8d8a390363ade2237f"
            }
          ],
          "repo": "https://github.com/wikimedia/mediawiki",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "unresolved_ranges": [
      {
        "cpes": [
          "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
        ],
        "extracted_events": [
          {
            "introduced": "33"
          },
          {
            "last_affected": "33"
          }
        ],
        "source": "CPE_STRING",
        "vendor_product": "fedoraproject:fedora"
      }
    ]
  },
  "details": "An information leak was discovered in MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4. Handling of actor ID does not necessarily use the correct database or correct wiki.",
  "id": "CVE-2020-25869",
  "modified": "2026-07-08T05:38:48.540899417Z",
  "published": "2020-09-27T21:15:12.937Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/"
    },
    {
      "type": "ADVISORY",
      "url": "https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html"
    },
    {
      "type": "REPORT",
      "url": "https://phabricator.wikimedia.org/T260485"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}