Security advisory

{
  "id": "dd03d03829abf6d05d293c191916d6487a532a60075cdfb9b77a98849299f877",
  "url": "https://osv.dev/vulnerability/CVE-2020-23209",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-23209",
    "summary": "A stored cross site scripting (XSS) vulnerability in phplist 3.5.3 allows attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the \"List Description\" field under the \"Edit A List\" module.",
    "evidence": "osv:CVE-2020-23209",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-23209",
      "aliases": [
        "BIT-phplist-2020-23209",
        "CVE-2020-23209"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/phplist/phplist3",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d6fa171f63c0f0846cc9bde9ce948fa0de0e73f6"
                },
                {
                  "last_affected": "d6fa171f63c0f0846cc9bde9ce948fa0de0e73f6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:phplist:phplist:3.5.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.5.3"
                      },
                      {
                        "last_affected": "3.5.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.5.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-23209.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:48.866303141Z",
      "provider": "osv",
      "references": [
        "https://github.com/phpList/phplist3/issues/666"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-23209",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383849,
  "published_at": "2021-07-01T21:15:08.07+00:00"
}