Security advisory

{
  "id": "d60f69ed70fc4b3964d2a9ab8a3bb68c8e965aa7ff79e7ee87fa4c3ab6b4b76b",
  "url": "https://osv.dev/vulnerability/CVE-2017-16244",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-16244",
    "summary": "Cross-Site Request Forgery exists in OctoberCMS 1.0.426 (aka Build 426) due to improper validation of CSRF tokens for postback handling, allowing an attacker to successfully take over the victim's account. The attack bypasses a protection mechanism involving X-CSRF headers and CSRF tokens via a certain _handler postback variable.",
    "evidence": "osv:CVE-2017-16244",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2017-16244",
      "aliases": [
        "CVE-2017-16244",
        "GHSA-vm6r-4p4v-232x"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/octobercms/october",
              "type": "GIT",
              "events": [
                {
                  "introduced": "de9804c8974d36a250b0059be141292021ff02bd"
                },
                {
                  "last_affected": "de9804c8974d36a250b0059be141292021ff02bd"
                },
                {
                  "fixed": "4a6e0e1e0e2c3facebc17e0db38c5b4d4cb05bd0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:octobercms:october:1.0.426:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.0.426"
                      },
                      {
                        "last_affected": "1.0.426"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "4a6e0e1e0e2c3facebc17e0db38c5b4d4cb05bd0"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.0.426",
            "v1.0.426"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-16244.json"
          }
        }
      ],
      "modified": "2026-10-20T10:49:01.497012519Z",
      "provider": "osv",
      "references": [
        "https://github.com/octobercms/october/commit/4a6e0e1e0e2c3facebc17e0db38c5b4d4cb05bd0",
        "https://www.exploit-db.com/exploits/43106/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-16244",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380420,
  "published_at": "2017-11-01T01:29:00.98+00:00"
}