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CVE-2026-100304: Not Failing Securely ('Failing Open') in TDuckCloud tduck-survey-form

0
Medium
VulnerabilityCVE-2026-100304cvecve-2026-100304
Published: 09/25/2026 (09/25/2026, 18:47:39 UTC)
Source: CVE Database V5
Vendor/Project: TDuckCloud
Product: tduck-survey-form

Description

TDuck survey form 6.0 contains an information disclosure vulnerability in FormAuthUtils.hasPermission that fails open when a form does not exist, allowing authenticated users to access deleted form submissions. Attackers can read orphaned submission data including personal information by providing a known dataId to the GET /user/form/data/details endpoint after the form has been permanently deleted.

CVSS v4.0

Score 6.0medium

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Affected software

TDuckCloud

tduck-survey-form

Affected versions
=6.0
GitHub Actionsmore threats →cve
tduck-survey-form
pkg:github/tduck-survey-form
Affected versions
=6.0

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Data Version
5.2
Assigner Short Name
VulnCheck
Date Reserved
2026-09-25T18:18:53.644Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6ab6c577f7a7c5410629b62a

Added to database: 09/25/2026, 19:03:19 UTC

Last updated: 09/25/2026, 19:03:19 UTC

Views: 1

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