CVE-2026-100306
tduck-survey-form: TDuck survey form through 6.0 Write Password Bypass via Client-Side Enforcement
TDuckCloud tduck-survey-form
CVSS
6.9MediumExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 30 Sep 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.39%Chance of exploitation activity in the next 30 days, higher than 31% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
TDuck survey form through 6.0 fails to validate write passwords on submission endpoints, enforcing the check only on the front end. Remote unauthenticated attackers can submit form entries directly to public submission APIs without providing the password by using the form key from share links.
Text from CVE List
Affected versions 1
- tduck-survey-formaffected: all versions through 6.0CVE List
References 5
- vulncheck.com/advisories/tduck-survey-form-through-6.0-write-password-bypass-via-client-side-enforcementAdvisoryvia CVE List
- github.com/LinYuanyi1/cve-request-poc/blob/adffc39b78cad18cd489cbf7454853bf0f744b7f/tduck/poc_form_data_create_bypass.pyExploitvia CVE List
- github.com/TDuckCloud/tduck-survey-formReferencevia CVE List
- github.com/TDuckCloud/tduck-survey-form/blob/43ffa9c993e38936fc4de7d8e5aee82bbaa19502/tduck-api/src/main/java/com/tduck/cloud/api/web/controller/UserFormSettingController.java#L154-L162Referencevia CVE List
- github.com/TDuckCloud/tduck-survey-form/blob/43ffa9c993e38936fc4de7d8e5aee82bbaa19502/tduck-api/src/main/java/com/tduck/cloud/api/web/controller/UserFormResultController.java#L152-L172Referencevia CVE List