Security advisory

{
  "id": "5893202a65f155fed4f276daa97314b4581db520c80668dce0052f8cb6505574",
  "url": "https://osv.dev/vulnerability/CVE-2020-15270",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-15270",
    "summary": "Parse Server (npm package parse-server) broadcasts events to all clients without checking if the session token is valid. This allows clients with expired sessions to still receive subscription objects. It is not possible to create subscription objects with invalid session tokens. The issue is not patched.",
    "evidence": "osv:CVE-2020-15270",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-15270",
      "aliases": [
        "BIT-parse-2020-15270",
        "CVE-2020-15270",
        "GHSA-2xm2-xj2q-qgpj"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/parse-community/parse-server",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "6f060e090934207724e8814faf1baca09057ea2b"
                },
                {
                  "fixed": "78b59fb26b1c36e3cdbd42ba9fec025003267f58"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.3.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "78b59fb26b1c36e3cdbd42ba9fec025003267f58"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.3.0",
            "4.2.0",
            "4.1.0",
            "4.0.2",
            "4.0.1",
            "4.0.0",
            "3.10.0",
            "3.9.0",
            "3.8.0",
            "3.7.2",
            "3.7.1",
            "3.7.0",
            "3.6.0",
            "3.5.0",
            "3.4.0",
            "3.4.1",
            "3.3.0",
            "3.2.3",
            "3.2.2",
            "3.2.1",
            "3.2.0",
            "3.1.3",
            "3.1.2",
            "3.1.1",
            "3.1.0",
            "3.0.0",
            "2.8.2",
            "2.8.0",
            "2.7.4",
            "2.7.3",
            "2.7.2",
            "2.7.1",
            "2.7.0",
            "2.6.5",
            "2.6.4",
            "2.6.3",
            "2.6.2",
            "2.6.1",
            "2.6.0",
            "2.5.3",
            "2.5.2",
            "2.5.1",
            "2.5.0",
            "2.4.2",
            "2.4.1",
            "2.4.0",
            "2.3.8",
            "2.3.7",
            "2.3.6",
            "2.3.5",
            "2.3.4",
            "2.3.3",
            "2.3.2",
            "2.3.1",
            "2.2.25",
            "2.2.25-beta.1",
            "2.2.24",
            "2.2.23",
            "2.2.22",
            "2.2.21",
            "2.2.20",
            "2.2.19",
            "2.2.18",
            "2.2.17",
            "2.2.16",
            "2.2.15",
            "2.2.14",
            "2.2.13",
            "2.2.12",
            "2.2.11",
            "2.2.10",
            "2.2.9",
            "2.2.8",
            "2.2.7",
            "2.2.6",
            "2.2.5",
            "2.2.4",
            "2.2.3",
            "2.2.2",
            "2.2.1",
            "2.2.0",
            "2.1.6",
            "2.1.5",
            "2.1.4",
            "2.1.3",
            "2.1.2",
            "2.1.1",
            "2.1.0",
            "2.0.8",
            "2.0.7",
            "2.0.3",
            "2.0.6",
            "2.0.5",
            "2.0.4",
            "2.0.2",
            "2.0.1",
            "2.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15270.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:54.119370736Z",
      "provider": "osv",
      "references": [
        "https://github.com/parse-community/parse-server/security/advisories/GHSA-2xm2-xj2q-qgpj",
        "https://npmjs.com/parse-server",
        "https://github.com/parse-community/parse-server/commit/78b59fb26b1c36e3cdbd42ba9fec025003267f58"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-15270",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383105,
  "published_at": "2020-10-22T22:15:12.063+00:00"
}