{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.4.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "44651bea9b02c992902639b21205f433aad47d03"
            }
          ],
          "repo": "https://github.com/identityserver/identityserver4",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "IdentityServer IdentityServer4 through 2.4 has stored XSS via the httpContext to the host/Extensions/RequestLoggerMiddleware.cs LogForErrorContext method, which can be triggered by viewing a log. NOTE: the software maintainer disputes that this is a vulnerability because the request logger is not part of IdentityServer but only our development test host",
  "id": "CVE-2019-12250",
  "modified": "2026-03-13T21:47:13.871717485Z",
  "published": "2019-05-21T16:29:01.877Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://github.com/IdentityServer/IdentityServer4/issues/3279"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}