Vulnerability-Lookup

GHSA-W4V5-Q3GM-MCF9

Vulnerability from github – Published: 2026-10-12 18:31 – Updated: 2026-10-12 18:31

Details

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

4.2 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-109396"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1236"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-12T16:17:05Z",
    "severity": "LOW"
  },
  "details": "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\u0027s spreadsheet application.",
  "id": "GHSA-w4v5-q3gm-mcf9",
  "modified": "2026-10-12T18:31:34Z",
  "published": "2026-10-12T18:31:34Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/thelia/thelia/security/advisories/GHSA-gcgv-f8rf-w2wc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109396"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thelia/thelia/commit/6e46059225d87565caf4859ec0f764354e82ce95"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thelia/thelia/commit/c00a26f0631ed9de3c4466176db6e808a25034aa"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thelia/thelia/blob/3.2.0/core/lib/Thelia/Core/Serializer/Serializer/CSVSerializer.php"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thelia/thelia/releases/tag/3.1.2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thelia/thelia/releases/tag/3.2.1"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/thelia-before-3.1.2-and-3.2-x-before-3.2.1-csv-formula-injection-via-exports"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-109396 (GCVE-0-2026-109396)

Vulnerability from cvelistv5 – Published: 2026-10-12 15:16 – Updated: 2026-10-13 15:22

Title

Thelia before 3.1.2 and 3.2.x before 3.2.1 CSV Formula Injection via Exports

Summary

Severity

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

4.2 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-13 15:21 UTC

CWE

CWE-1236 - Improper Neutralization of Formula Elements in a CSV File

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 6106 records in the last 180 days details

References

7 references

URL	Tags
https://github.com/thelia/thelia/security/advisor…	vendor-advisory
https://github.com/thelia/thelia/commit/c00a26f06…	patch
https://github.com/thelia/thelia/commit/6e4605922…	patch
https://github.com/thelia/thelia/blob/3.2.0/core/…	technical-description
https://github.com/thelia/thelia/releases/tag/3.1.2	release-notes
https://github.com/thelia/thelia/releases/tag/3.2.1	release-notes
https://www.vulncheck.com/advisories/thelia-befor…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Thelia	Thelia	Affected: 0 , < 3.1.2 (semver) Affected: 3.2.0 , < 3.2.1 (semver)

Date Public

2026-10-06 10:17

Credits

HunterSploit

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-109396",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-13T15:21:28.032308Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-13T15:22:23.047Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/thelia/thelia/security/advisories/GHSA-gcgv-f8rf-w2wc"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "packageURL": "pkg:composer/thelia/thelia",
          "product": "Thelia",
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          "versions": [
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "3.2.1",
              "status": "affected",
              "version": "3.2.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
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          "lang": "en",
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          "value": "HunterSploit"
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 2.3,
            "baseSeverity": "LOW",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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            "vectorString": "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",
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            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW"
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          "format": "CVSS"
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          "cvssV3_1": {
            "attackComplexity": "HIGH",
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          "url": "https://github.com/thelia/thelia/security/advisories/GHSA-gcgv-f8rf-w2wc"
        },
        {
          "tags": [
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        {
          "tags": [
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          "url": "https://github.com/thelia/thelia/blob/3.2.0/core/lib/Thelia/Core/Serializer/Serializer/CSVSerializer.php"
        },
        {
          "name": "Thelia 3.1.2 Release Notes",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/thelia/thelia/releases/tag/3.1.2"
        },
        {
          "name": "Thelia 3.2.1 Release Notes",
          "tags": [
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          "url": "https://github.com/thelia/thelia/releases/tag/3.2.1"
        },
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          "tags": [
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        }
      ],
      "title": "Thelia before 3.1.2 and 3.2.x before 3.2.1 CSV Formula Injection via Exports",
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  "cveMetadata": {
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    "assignerShortName": "VulnCheck",
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    "datePublished": "2026-10-12T15:16:41.909Z",
    "dateReserved": "2026-10-12T14:40:47.844Z",
    "dateUpdated": "2026-10-13T15:22:23.047Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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