Security advisory

{
  "id": "d84dd5c6eb8539627ba643e1f8bd2da21736232c8e3eb252c4cab4ebcc3dc183",
  "url": "https://osv.dev/vulnerability/CVE-2020-36389",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-36389",
    "summary": "In CiviCRM before 5.28.1 and CiviCRM ESR before 5.27.5 ESR, the CKEditor configuration form allows CSRF.",
    "evidence": "osv:CVE-2020-36389",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-36389",
      "aliases": [
        "BIT-civicrm-2020-36389",
        "CVE-2020-36389"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/civicrm/civicrm-core",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "be989a7051c7620136c4e6dbdb128f55d3b2b5f9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:civicrm:civicrm:*:*:*:*:-:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "5.28.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.28.0",
            "4.7.10-pre1",
            "4.7.4",
            "4.7.6",
            "4.7.5",
            "4.7.3",
            "4.7.2",
            "4.7.1",
            "4.7.0",
            "4.7.beta8",
            "4.7.beta7",
            "4.7.beta6",
            "4.7.beta5",
            "4.7.beta4",
            "4.7.beta3",
            "4.7.beta2",
            "4.7.beta1",
            "4.7.alpha5",
            "4.7.alpha4",
            "4.7.alpha3",
            "4.7.alpha2",
            "4.7.alpha1",
            "4.6.beta2",
            "4.6.beta1",
            "4.6.alpha7",
            "4.6.alpha6",
            "4.6.alpha5",
            "4.6.alpha4",
            "4.6.alpha3",
            "4.6.alpha2",
            "4.6.alpha1",
            "4.5.beta8",
            "4.5.beta7",
            "4.5.beta6",
            "4.5.beta5",
            "4.5.beta4",
            "4.5.beta3",
            "4.5.beta2",
            "4.5.beta1",
            "4.5.alpha2",
            "4.5.alpha1",
            "4.4.beta4",
            "4.4.beta3",
            "4.4.beta2",
            "4.4.beta1",
            "4.4.alpha3",
            "4.4.alpha2",
            "4.4.alpha1",
            "4.3.beta5",
            "4.3.beta4",
            "4.3.beta3",
            "4.3.beta2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36389.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:20.438159355Z",
      "provider": "osv",
      "references": [
        "https://civicrm.org/advisory/civi-sa-2020-11-csrf-ckeditor-configuration-form",
        "https://blog.sonarsource.com/civicrm-code-execution-vulnerability-chain-explained/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:civicrm:civicrm:*:*:*:*:extended_security_release:*:*:*"
            ],
            "vendor_product": "civicrm:civicrm",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "5.27.5"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-36389",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 430268,
  "published_at": "2021-06-17T19:15:07.827+00:00"
}