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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
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
CWEs
CWE-639
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.