CVE-2026-100304
TDuck survey form 6.0 Information Disclosure via Fail-Open Form Ownership Check
MEDIUM 6.0EPSS 0.4%
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.
- Affected
- TDuckCloud · tduck-survey-form
- CVSS v4.0 VULNCHECK
- 6.0 MEDIUM
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/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 - CVSS v3.1 VULNCHECK
- 5.3 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS
- 0.35% chance of exploitation in the next 30 days, 27th percentile
- Published
- 2026-09-25
- Updated
- 2026-09-29
Proof-of-concept exploits (1)
- LinYuanyi1/cve-request-poc/blob/adffc39b78cad18cd489cbf7454853bf0f744b7f/tduck/poc_form_d…1★ · 2026-09-19