CVE-2026-111621 Details
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.
A missing authorization vulnerability has been identified in TDuck Survey Form versions through 5.3. This vulnerability allows any authenticated user to access raw form settings of other users via the GET /user/form/setting/{key} endpoint. Exploitation involves supplying an 8-character form key, obtained from a public fill link, to retrieve sensitive information such as the form write password, owner notification email, and WeChat openIds.
It is recommended to implement proper ownership checks on the affected endpoint, ensuring that only form owners can access their settings. Additionally, return a sanitized version of the settings that excludes sensitive information like the write password.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 16, 2026CISA-ADP
Assessed Oct 16, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| TDuck Survey Form | <= 5.3 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 16, 2026 | CVE Modified | CISA-ADP |
| Oct 16, 2026 | New CVE Received | [email protected] |