Medium severity4.3NVD Advisory· Published Oct 16, 2026· Updated Oct 16, 2026
CVE-2026-111621
CVE-2026-111621
Description
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.
Affected products
1- Range: <=5.3
Patches
Vulnerability mechanics
References
4- github.com/TDuckCloud/tduck-survey-form/blob/5.3/tduck-api/src/main/java/com/tduck/cloud/api/web/controller/UserFormSettingController.javanvd
- github.com/TDuckCloud/tduck-survey-form/commit/984efd69f51778e3d1a9ea0feb0f7c9aed266c18nvd
- hackmd.io/@hieuPenguinnn/tduck-survey-form-setting-cross-user-disclosurenvd
- www.vulncheck.com/advisories/tduck-survey-form-through-5.3-missing-authorization-via-user-form-setting-keynvd
News mentions
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