Security advisory

{
  "id": "7ebb5a8e41fb33a00cc919a75500df28d4d8dabf9e78207a79d82d1ef5be152c",
  "url": "https://osv.dev/vulnerability/CVE-2020-5203",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-5203",
    "summary": "In Fat-Free Framework 3.7.1, attackers can achieve arbitrary code execution if developers choose to pass user controlled input (e.g., $_REQUEST, $_GET, or $_POST) to the framework's Clear method.",
    "evidence": "osv:CVE-2020-5203",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-5203",
      "aliases": [
        "CVE-2020-5203",
        "GHSA-hpj2-4hfj-g233"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/bcosca/fatfree",
              "type": "GIT",
              "events": [
                {
                  "introduced": "495a97c9957a9edfbaea362927be6f3faa96fc52"
                },
                {
                  "last_affected": "495a97c9957a9edfbaea362927be6f3faa96fc52"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:fatfreeframework:fat-free_framework:3.7.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.7.1"
                      },
                      {
                        "last_affected": "3.7.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.7.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-5203.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/f3-factory/fatfree-core",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "dae95a0baf3963a9ef87c17cee52f78f77e21829"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "dae95a0baf3963a9ef87c17cee52f78f77e21829"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.7.1",
            "3.7.0",
            "3.6.5",
            "3.6.3",
            "v3.6.0",
            "3.5.1",
            "3.5.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-5203.json"
          }
        }
      ],
      "modified": "2026-10-24T10:50:39.970307484Z",
      "provider": "osv",
      "references": [
        "https://github.com/bcosca/fatfree/releases",
        "https://github.com/bcosca/fatfree-core/commit/dae95a0baf3963a9ef87c17cee52f78f77e21829"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-5203",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 442439,
  "published_at": "2020-03-11T14:15:14.623+00:00"
}