CVE-2026-100305

TDuck survey form through 6.0 fails to enforce form fill-in restrictions on the authenticated submission endpoint POST /user/form/data/create. Authenticated attackers who know a form's key can submit unlimited entries to any form, bypassing publish status, time window, quota, and per-IP restrictions to falsify collected results.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/LinYuanyi1/cve-request-poc/blob/adffc39b78cad18cd489cbf7454853bf0f744b7f/tduck/poc_form_data_create_bypass.py
https://github.com/TDuckCloud/tduck-survey-form
https://github.com/TDuckCloud/tduck-survey-form/blob/43ffa9c993e38936fc4de7d8e5aee82bbaa19502/tduck-api/src/main/java/com/tduck/cloud/api/web/controller/UserFormResultController.java#L135-L172
https://github.com/TDuckCloud/tduck-survey-form/blob/43ffa9c993e38936fc4de7d8e5aee82bbaa19502/tduck-form/src/main/java/com/tduck/cloud/form/service/impl/UserFormSettingServiceImpl.java#L77-L135
https://www.vulncheck.com/advisories/tduck-survey-form-through-6.0-fill-in-restriction-bypass-via-authenticated-submission-endpoint

Configurations

No configuration.

History

25 Sep 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-25 19:16

Updated : 2026-09-28 20:51

NVD link : CVE-2026-100305

Mitre link : CVE-2026-100305

CVE.ORG link : CVE-2026-100305

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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