Security advisory

{
  "id": "21cec7ad596be91b6ee9b712e8d33a20301698cec443738355b3626fc7527f00",
  "url": "https://osv.dev/vulnerability/CVE-2018-20698",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-20698",
    "summary": "The floragunn Search Guard plugin before 6.x-16 for Kibana allows URL injection for login redirects on the login page when basePath is set.",
    "evidence": "osv:CVE-2018-20698",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-20698",
      "aliases": [
        "CVE-2018-20698"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/floragunncom/search-guard-kibana-plugin",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "7c23600e657383c54c65c8aaf1fca18ec4e86da1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:search-guard:search_guard:*:*:*:*:*:kibana:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "6.3.0-16"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v6.3.0-15",
            "v6.3.0-14",
            "v6.3.0-14-beta-1",
            "v6.1.0-8",
            "v6.0.0-6.beta1",
            "v5.5.1-4",
            "v5.5.1-3",
            "v5.5.0-3",
            "v5.4.1-3",
            "v5.4.3-3",
            "v5.4.3",
            "v5.4.2-3",
            "v5.3.2-2",
            "v5.4.0",
            "v5.3.1-2",
            "v1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20698.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:26.786774426Z",
      "provider": "osv",
      "references": [
        "https://github.com/floragunncom/search-guard-kibana-plugin/pull/140",
        "https://docs.search-guard.com/latest/changelog-kibana-6.x-16"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-20698",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381718,
  "published_at": "2019-04-09T18:29:00.517+00:00"
}