CVE-2026-109396
Thelia before 3.1.2 and 3.2.x before 3.2.1 CSV Formula Injection via Exports
- State
- Published
- Severity
- 2.3 Low
- Published
- Oct 12, 2026
- Updated
- Oct 13, 2026
- Reserved
- Oct 12, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.3 Low | 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 | VulnCheck |
| 3.1 | 4.2 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-1236 Improper Neutralization of Formula Elements in a CSV File
Affected Products
| Product | Versions |
|---|---|
TheliaThelia |
|
References
- GitHub Security Advisory (GHSA-gcgv-f8rf-w2wc)vendor-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
- Thelia 3.1.2 Release Notesrelease-notes
- Thelia 3.2.1 Release Notesrelease-notes
- VulnCheck Advisory: Thelia before 3.1.2 and 3.2.x before 3.2.1 CSV Formula Injection via Exportsthird-party-advisory
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