Security advisory

{
  "id": "850ecf48b082861705f569c1e4abf075d3cdc5d4cf44f6a158f46f81eaf66667",
  "url": "https://osv.dev/vulnerability/CVE-2018-14655",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-14655",
    "summary": "A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using 'response_mode=form_post' it is possible to inject arbitrary Javascript-Code via the 'state'-parameter in the authentication URL. This allows an XSS-Attack upon succesfully login.",
    "evidence": "osv:CVE-2018-14655",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-14655",
      "aliases": [
        "CVE-2018-14655",
        "GHSA-458h-wv48-fq75"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/keycloak/keycloak",
              "type": "GIT",
              "events": [
                {
                  "introduced": "517588ecca8e8749c70c7a28706fc405623617d3"
                },
                {
                  "last_affected": "b2269bd74dab4f95cc25c413fb7b06aa2bd678c3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:redhat:keycloak:3.4.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.4.3"
                      },
                      {
                        "last_affected": "3.4.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:redhat:keycloak:4.0.0:beta2:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0.0-beta2"
                      },
                      {
                        "last_affected": "4.0.0-beta2"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:redhat:keycloak:4.3.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.3.0"
                      },
                      {
                        "last_affected": "4.3.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.4.3",
            "4.0.0-beta2",
            "4.3.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-14655.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:06.736112463Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/errata/RHSA-2018:3592",
        "https://access.redhat.com/errata/RHSA-2018:3593",
        "https://access.redhat.com/errata/RHSA-2018:3595",
        "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14655"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:redhat:single_sign-on:7.2:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:single_sign-on",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "7.2"
                  },
                  {
                    "last_affected": "7.2"
                  },
                  {
                    "introduced": "7.2"
                  },
                  {
                    "last_affected": "7.2"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-14655",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441032,
  "published_at": "2018-11-13T19:29:00.307+00:00"
}