CVE-2026-109396Thelia before 3.1.2 and 3.2.x before 3.2.1 CSV Formula Injection via Exports
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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.
- CVSS
- 4.2 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-1236
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 13, 2026
- First seen by InfoSec Signals
- Oct 12, 2026
Affected products
Thelia Thelia thelia:thelia (from the name) | before 3.1.2; from 3.2.0 before 3.2.1 | CNA record |
References
- https://github.com/thelia/thelia/security/advisories/GHSA-gcgv-f8rf-w2wcvendor-advisory
- https://github.com/thelia/thelia/commit/c00a26f0631ed9de3c4466176db6e808a25034aapatch
- https://github.com/thelia/thelia/commit/6e46059225d87565caf4859ec0f764354e82ce95patch
- https://github.com/thelia/thelia/blob/3.2.0/core/lib/Thelia/Core/Serializer/Serializer/CSVSerializer.phptechnical-description
- https://github.com/thelia/thelia/releases/tag/3.1.2release-notes
- https://github.com/thelia/thelia/releases/tag/3.2.1release-notes
- https://www.vulncheck.com/advisories/thelia-before-3.1.2-and-3.2-x-before-3.2.1-csv-formula-injection-via-exportsthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.