PrestaShop psgdpr through 1.4.3 GDPR Log Forgery

{
  "id": "bc0e127130a1289070ced929c46f085acc7df2cf5c56908f84fdc356cde77652",
  "url": "https://osv.dev/vulnerability/CVE-2026-92809",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "PrestaShop psgdpr through 1.4.3 GDPR Log Forgery",
    "summary": "PrestaShop psgdpr versions through 1.4.3 fail to validate that GDPR consent log entries are attributed to the authenticated customer. Authenticated attackers can submit arbitrary customer identifiers to create forged consent records for other customers, corrupting audit logs.",
    "evidence": "osv:CVE-2026-92809",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-92809",
      "aliases": [
        "CVE-2026-92809"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/prestashop/psgdpr",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "2b94cd472d00c837275f0aa8677947de2691c6d7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.4.3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.4.3"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.4.3",
            "v1.4.2",
            "v1.4.1",
            "v1.4.0",
            "v1.3.0",
            "v1.2.1",
            "v1.2.0",
            "v1.1.3",
            "v1.1.2",
            "v1.1.1",
            "v1.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92809.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.526591970Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92809.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-92809",
        "https://www.vulncheck.com/advisories/prestashop-psgdpr-through-1.4.3-gdpr-log-forgery",
        "https://github.com/PrestaShop/psgdpr",
        "https://github.com/PrestaShop/psgdpr/blob/v1.4.3/controllers/front/FrontAjaxGdpr.php#L28-L54",
        "https://github.com/geo-chen/oss/blob/main/prestashop.md#finding-1-idor---authenticated-customers-can-forge-gdpr-consent-records-for-arbitrary-customers"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-639"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92809.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-92809",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505746,
  "published_at": "2026-09-16T20:32:56.067+00:00"
}