{"id":"CVE-2026-109396","aliases":["EUVD-2026-97493","GHSA-gcgv-f8rf-w2wc","GHSA-w4v5-q3gm-mcf9"],"status":"published","title":"Thelia before 3.1.2 and 3.2.x before 3.2.1 CSV Formula Injection via Exports","description":"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.","severity":{"version":"4.0","score":2.3,"vector":"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","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00232,"percentile":0.14192,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1236"],"published":"2026-10-12T15:16:41Z","modified":"2026-10-28T02:30:45Z","products":[{"vendor":"thelia","product":"thelia"}],"references":[{"url":"https://github.com/thelia/thelia/security/advisories/GHSA-gcgv-f8rf-w2wc","tags":["vendor-advisory","exploit","advisory"]},{"url":"https://github.com/thelia/thelia/commit/c00a26f0631ed9de3c4466176db6e808a25034aa","tags":["patch","fix"]},{"url":"https://github.com/thelia/thelia/commit/6e46059225d87565caf4859ec0f764354e82ce95","tags":["patch","fix"]},{"url":"https://github.com/thelia/thelia/blob/3.2.0/core/lib/Thelia/Core/Serializer/Serializer/CSVSerializer.php","tags":["technical-description","article"]},{"url":"https://github.com/thelia/thelia/releases/tag/3.1.2","tags":["release-notes","advisory"]},{"url":"https://github.com/thelia/thelia/releases/tag/3.2.1","tags":["release-notes","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","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109396","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-w4v5-q3gm-mcf9"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109396.json","tags":["advisory"]},{"url":"https://github.com/thelia/thelia","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-109396","title":"Thelia before 3.1.2 and 3.2.x before 3.2.1 CSV Formula Injection via Exports","description":"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.","status":"published","published":"2026-10-12T15:16:41.909Z","modified":"2026-10-13T15:22:23.047Z","cvss":[{"version":"4.0","score":2.3,"vector":"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","level":"low","assessor":"cna"},{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-1236"],"updated_at":"2026-11-02T14:20:11.581788Z"}],"euvd":[{"id":"EUVD-2026-97493","description":"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.","status":"published","published":"2026-10-12T15:16:41Z","modified":"2026-10-13T15:22:23Z","cvss":[{"version":"4.0","score":2.3,"vector":"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","level":"low"}],"updated_at":"2026-11-02T17:27:20.397021Z"}],"ghsa":[{"id":"GHSA-w4v5-q3gm-mcf9","title":"Thelia before 3.1.2 and 3.2.x before 3.2.1 contains a CSV formula injection vulnerability that...","description":"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.","status":"published","published":"2026-10-12T18:31:34Z","modified":"2026-10-12T18:31:35Z","cvss":[{"version":"4.0","score":2.3,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low"},{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-1236"],"updated_at":"2026-11-02T15:13:06.481163Z"}],"nvd":[{"id":"CVE-2026-109396","description":"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.","status":"published","published":"2026-10-12T16:17:05.077Z","modified":"2026-10-13T20:41:35.943Z","cvss":[{"version":"4.0","score":2.3,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"},{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-1236"],"updated_at":"2026-11-02T14:12:56.310333Z"}],"osv":[{"id":"CVE-2026-109396","title":"Thelia before 3.1.2 and 3.2.x before 3.2.1 CSV Formula Injection via Exports","description":"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.","status":"published","published":"2026-10-12T15:16:41.909Z","modified":"2026-10-28T02:30:45.223532816Z","cvss":[{"version":"4.0","score":2.3,"vector":"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","level":"low"}],"cwes":["CWE-1236"],"updated_at":"2026-11-02T15:44:55.279797Z"}]}}