CVE-2026-100303
MediumCVSS 5.4Summary
TDuck survey form through 6.0 lacks authorization checks on FormThemeController write endpoints for global form themes and categories. Authenticated non-admin users can add, modify, or delete themes and theme categories affecting forms owned by other users.
Risk Assessment
Unauthorized theme modifications can disrupt the appearance or functionality of other users' forms, causing operational disruptions and potential reputational damage. This may also compromise data integrity and user trust.
Recommendation
Update TDuck to a version later than 6.0 if available, or implement proper authorization controls for FormThemeController endpoints. Restrict the ability to modify global themes to administrators only.
Other vulnerabilities in TDuck
See all- CVE-2026-100305Medium
TDuck survey form through 6.0 fails to enforce form fill-in restrictions on the authenticated submission endpoint POST /user/form/data/create. Authenticated attackers who know a form's key can submit unlimited entries to any form, bypassing publish status, time window, quota, and per-IP restrictions to falsify collected results.
- CVE-2026-100304Medium
TDuck survey form 6.0 contains an information disclosure vulnerability in FormAuthUtils.hasPermission that fails open when a form does not exist, allowing authenticated users to access deleted form submissions. Attackers can read orphaned submission data including personal information by providing a known dataId to the GET /user/form/data/details endpoint after the form has been permanently deleted.
- CVE-2026-92602High
TDuck survey form through version 5.3 fails to validate webhook URLs or verify form ownership in WebhookConfigController. Authenticated attackers can attach webhooks to other users' forms and exfiltrate submissions to arbitrary external or internal addresses.
Original NVD description (English source)
TDuck survey form through 6.0 lacks authorization checks on FormThemeController write endpoints for global form themes and categories. Authenticated non-admin users can add, modify, or delete themes and theme categories affecting forms owned by other users.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS