EUVD-2026-97373

TDuck survey form through 6.0 contains an insecure direct object reference vulnerability in the saveFormTheme handler that allows authenticated users to overwrite other users' form themes. Attackers whose form has no theme can submit another form's sequential theme id with their own formKey,...

CVE-2026-109167 TDuck survey form through 6.0 Authorization Bypass via User-Controlled Theme ID in POST /user/form/theme/save

TDuck survey form through 6.0 contains an insecure direct object reference vulnerability in the saveFormTheme handler that allows authenticated users to overwrite other users' form themes. Attackers whose form has no theme can submit another form's sequential theme id with their own formKey,...

CVE-2026-109167

The TDuck survey form (versions through 6.0) is vulnerable to an Insecure Direct Object Reference (IDOR) vulnerability within the saveFormTheme handler. This flaw allows authenticated users to overwrite the form themes of other users by submitting a sequential theme ID paired with their own formK...

CVE-2026-109167: Authorization Bypass Through User-Controlled Key

TDuck survey form through 6.0 contains an insecure direct object reference vulnerability in the saveFormTheme handler that allows authenticated users to overwrite other users' form themes. Attackers whose form has no theme can submit another form's sequential theme id with their own formKey,...