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.
Published: 2026-10-12
Score: 2.3 Low
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 13 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 07:45:00 +0000

Type Values Removed Values Added
First Time appeared Thelia
Thelia thelia
Vendors & Products Thelia
Thelia thelia

Mon, 12 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
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.
Title Thelia before 3.1.2 and 3.2.x before 3.2.1 CSV Formula Injection via Exports
Weaknesses CWE-1236
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N'}

cvssV4_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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-13T15:22:23.047Z

Reserved: 2026-10-12T14:40:47.844Z

Link: CVE-2026-109396

cve-icon Vulnrichment

Updated: 2026-10-13T15:21:41.103Z

cve-icon NVD

Status : Received

Published: 2026-10-12T16:17:05.077

Modified: 2026-10-13T16:17:17.430

Link: CVE-2026-109396

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T07:26:46Z

Weaknesses
  • CWE-1236

    Improper Neutralization of Formula Elements in a CSV File