djangoSIGE 1.10 CSRF via GET-based Order Cancellation Views

{
  "id": "5c81baf12026285f8debc6c1b8ffc497bb9ed6c02d099f5a954cdda12b13e0ae",
  "url": "https://osv.dev/vulnerability/CVE-2026-64821",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "djangoSIGE 1.10 CSRF via GET-based Order Cancellation Views",
    "summary": "djangoSIGE through 1.10 (commit a6fe7e8) contains a cross-site request forgery vulnerability that allows unauthenticated attackers to cancel sales or purchase orders on behalf of authenticated users by exploiting order-cancellation logic implemented inside HTTP GET method handlers in CancelarOrcamentoVendaView, CancelarPedidoVendaView, CancelarOrcamentoCompraView, and CancelarPedidoCompraView. Attackers can lure an authenticated victim with change_orcamentovenda or equivalent permissions to a page containing a cross-origin reference such as an img tag pointing to the cancellation endpoint, bypassing CSRF token validation entirely since Django's CsrfViewMiddleware only enforces CSRF checks on unsafe HTTP methods.",
    "evidence": "osv:CVE-2026-64821",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-64821",
      "aliases": [
        "CVE-2026-64821"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/thiagopena/djangoSIGE",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "a6fe7e8e3a7d52ba0a25305df4e5e7e0cd5f5792"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "a6fe7e8e3a7d52ba0a25305df4e5e7e0cd5f5792"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64821.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.248549247Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64821.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-64821",
        "https://www.vulncheck.com/advisories/djangosige-csrf-via-get-based-order-cancellation-views",
        "https://github.com/thiagopena/djangoSIGE/pull/163",
        "https://github.com/thiagopena/djangoSIGE",
        "https://github.com/americooo/pentest-writeups/tree/main/djangoSIGE-CVE-2026-64821-64822"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-352"
        ],
        "cna_assigner": "VulnCheck",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "1.10"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64821.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-64821",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 488745,
  "published_at": "2026-07-21T20:31:35.885+00:00"
}