Security advisory

{
  "id": "e7a333c4a65628a2e5d6efd6be39160a3542cbdc32283d725e67c382a646fc54",
  "url": "https://osv.dev/vulnerability/CVE-2020-12639",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-12639",
    "summary": "phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.",
    "evidence": "osv:CVE-2020-12639",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-12639",
      "aliases": [
        "BIT-phplist-2020-12639",
        "CVE-2020-12639"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/phplist/phplist3",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d6fa171f63c0f0846cc9bde9ce948fa0de0e73f6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:phplist:phplist:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.5.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.5.2",
            "3.5.1",
            "3.5.0",
            "3.4.9",
            "3.4.8",
            "3.4.7",
            "3.4.6",
            "3.4.5",
            "3.4.4",
            "v.3.3.8",
            "3.3.6",
            "v.3.3.5",
            "v3.2.7",
            "v3.2.1",
            "3.2.0",
            "3.2.0-RC1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12639.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:35.273610735Z",
      "provider": "osv",
      "references": [
        "https://github.com/phpList/phplist3/compare/3.5.2...3.5.3",
        "https://www.phplist.org/newslist/phplist-3-5-3-release-notes/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-12639",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382610,
  "published_at": "2020-05-04T14:15:13.373+00:00"
}