{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.1.2"
              },
              {
                "introduced": "3.2.0"
              },
              {
                "fixed": "3.2.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d589573261ee9a41db6386375f3beb9f610c5ffd"
            },
            {
              "introduced": "cdff8e3d89985d880a3605ebd6bc585780583d92"
            },
            {
              "fixed": "72a72e442b7a15a54eb2991758e1066b58cfab1e"
            }
          ],
          "repo": "https://github.com/thelia/thelia",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-gcgv-f8rf-w2wc"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-1236"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109396.json"
  },
  "details": "Thelia before 3.1.2 and 3.2.x before 3.2.1 contains a CSV formula injection vulnerability that allows unauthenticated visitors to inject spreadsheet formulas by supplying crafted registration, checkout or newsletter fields. Attackers can submit names, addresses or phone values starting with =, +, - or @ that CSVSerializer exports verbatim, executing formulas in the administrator's spreadsheet application.",
  "id": "CVE-2026-109396",
  "modified": "2026-10-15T02:30:30.389786357Z",
  "published": "2026-10-12T15:16:41.909Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109396.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/thelia/thelia/releases/tag/3.1.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/thelia/thelia/releases/tag/3.2.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/thelia/thelia/security/advisories/GHSA-gcgv-f8rf-w2wc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109396"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/thelia-before-3.1.2-and-3.2-x-before-3.2.1-csv-formula-injection-via-exports"
    },
    {
      "type": "FIX",
      "url": "https://github.com/thelia/thelia/commit/6e46059225d87565caf4859ec0f764354e82ce95"
    },
    {
      "type": "FIX",
      "url": "https://github.com/thelia/thelia/commit/c00a26f0631ed9de3c4466176db6e808a25034aa"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/thelia/thelia"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/thelia/thelia/blob/3.2.0/core/lib/Thelia/Core/Serializer/Serializer/CSVSerializer.php"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Thelia before 3.1.2 and 3.2.x before 3.2.1 CSV Formula Injection via Exports"
}