CVE-2026-111621 — TDuck Survey Form through 5.3 Missing Authorization via /user/form/setting/{key}

2026-10-19T20:09:45.803071+00:00

Affected: TDuckCloud tduck-survey-form

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.

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CVE-2026-111621 — TDuck Survey Form through 5.3 Missing Authorization via /user/form/setting/{key}