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.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-1236"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109396.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "3.1.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "3.2.0"
},
{
"fixed": "3.2.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"fixed": "c00a26f0631ed9de3c4466176db6e808a25034aa"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "6e46059225d87565caf4859ec0f764354e82ce95"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "3.1.2",
"range": [
{
"fixed": "d589573261ee9a41db6386375f3beb9f610c5ffd"
}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "3.2.1",
"range": [
{
"fixed": "72a72e442b7a15a54eb2991758e1066b58cfab1e"
}
],
"source": "REFERENCES_TAG"
}
]
}