{"schema":"threatline.record/2","record":{"id":"CVE-2026-100305","aliases":[],"summary":"TDuck survey form through 6.0 Fill-In Restriction Bypass via Authenticated Submission Endpoint","details":"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.","categories":["Unclassified"],"product":"tduck-survey-form","vendor":"TDuckCloud","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100305","source_modified_at":"2026-09-25T19:06:51.767Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"tduck-survey-form","vendor":"TDuckCloud","versions":[{"version":"0","lessThanOrEqual":"6.0","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00268,"percentile":0.17956,"score_date":"2026-10-23"},"published_at":"2026-09-25T18:47:40.211Z","modified_at":"2026-09-25T19:06:51.767Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-100305","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-25T19:06:51.767Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100305","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/LinYuanyi1/cve-request-poc/blob/adffc39b78cad18cd489cbf7454853bf0f744b7f/tduck/poc_form_data_create_bypass.py","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/TDuckCloud/tduck-survey-form","tags":["product"]},{"source":"CVE List","url":"https://github.com/TDuckCloud/tduck-survey-form/blob/43ffa9c993e38936fc4de7d8e5aee82bbaa19502/tduck-api/src/main/java/com/tduck/cloud/api/web/controller/UserFormResultController.java#L135-L172","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/TDuckCloud/tduck-survey-form/blob/43ffa9c993e38936fc4de7d8e5aee82bbaa19502/tduck-form/src/main/java/com/tduck/cloud/form/service/impl/UserFormSettingServiceImpl.java#L77-L135","tags":["technical-description"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/tduck-survey-form-through-6.0-fill-in-restriction-bypass-via-authenticated-submission-endpoint","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-25T19:06:44.808090Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-25T19:06:51.767Z","content_hash":"c8087f320355ab5896aacda6dfd48ba4fdcc62af538482c36619d694f14083c1"}}