CVE-2026-111621

EUVD-2026-103043
TDuck Survey Form through 5.3 contains a missing authorization vulnerability that allows any authenticated user to read other owners' raw form settings via GET /user/form/setting/{key}. Attackers can supply the 8-character form key from a public fill link to obtain the form write password, owner notification e-mail, and WeChat openIds.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 15.51%
Common Weakness Enumeration
References
https://github.com/TDuckCloud/tduck-survey-form
https://github.com/TDuckCloud/tduck-survey-form/blob/5.3/tduck-api/src/main/java/com/tduck/cloud/api/web/controller/UserFormSettingController.java#L66-L75
https://github.com/TDuckCloud/tduck-survey-form/commit/984efd69f51778e3d1a9ea0feb0f7c9aed266c18
https://hackmd.io/@hieuPenguinnn/tduck-survey-form-setting-cross-user-disclosure
https://www.vulncheck.com/advisories/tduck-survey-form-through-5.3-missing-authorization-via-user-form-setting-key