{"id":"CVE-2026-109396","title":"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","summary":"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…","severity":"medium","cvss":4.2,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","cwe":["CWE-1236"],"published":"2026-10-12","updated":"2026-10-12","sourceUpdated":"2026-10-12T16:17:05.077","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-109396","references":[{"url":"https://github.com/thelia/thelia/blob/3.2.0/core/lib/Thelia/Core/Serializer/Serializer/CSVSerializer.php","label":"disclosure@vulncheck.com"},{"url":"https://github.com/thelia/thelia/commit/6e46059225d87565caf4859ec0f764354e82ce95","label":"disclosure@vulncheck.com"},{"url":"https://github.com/thelia/thelia/commit/c00a26f0631ed9de3c4466176db6e808a25034aa","label":"disclosure@vulncheck.com"},{"url":"https://github.com/thelia/thelia/releases/tag/3.1.2","label":"disclosure@vulncheck.com"},{"url":"https://github.com/thelia/thelia/releases/tag/3.2.1","label":"disclosure@vulncheck.com"},{"url":"https://github.com/thelia/thelia/security/advisories/GHSA-gcgv-f8rf-w2wc","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/thelia-before-3.1.2-and-3.2-x-before-3.2.1-csv-formula-injection-via-exports","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"ingestedAt":"2026-10-12T16:57:59.914Z","slug":"CVE-2026-109396","body":"## Overview\n\nThelia 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":23,"depthScoreParts":{"impact":23.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}