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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00268.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
TDuckCloud tduck-survey-form unaffected
Version Status Constraints
0 affected ≤ 6.0

No data.

No data.

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Vendors Products
Tduckcloud Subscribe
Tduck-survey-form Subscribe

Project Subscriptions

Vendors Products
Tduckcloud Subscribe
Tduck-survey-form Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Sat, 26 Sep 2026 09:30:00 +0000

Type Values Removed Values Added
First Time appeared Tduckcloud
Tduckcloud tduck-survey-form
Vendors & Products Tduckcloud
Tduckcloud tduck-survey-form

Fri, 25 Sep 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title TDuck survey form through 6.0 Fill-In Restriction Bypass via Authenticated Submission Endpoint
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-25T19:06:51.767Z

Reserved: 2026-09-25T18:18:58.548Z

Link: CVE-2026-100305

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-09-25T19:16:50.973

Modified: 2026-09-28T20:51:05.473

Link: CVE-2026-100305

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-26T09:15:09Z

Weaknesses