{"schema":"threatline.record/2","record":{"id":"CVE-2026-100304","aliases":[],"summary":"TDuck survey form 6.0 Information Disclosure via Fail-Open Form Ownership Check","details":"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.","categories":["Unclassified"],"product":"tduck-survey-form","vendor":"TDuckCloud","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100304","source_modified_at":"2026-09-29T17:51:07.650Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"tduck-survey-form","vendor":"TDuckCloud","versions":[{"version":"6.0","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00352,"percentile":0.27616,"score_date":"2026-10-23"},"published_at":"2026-09-25T18:47:39.440Z","modified_at":"2026-09-29T17:51:07.650Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-100304","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-29T17:51:07.650Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100304","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_details_orphan.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-form/src/main/java/com/tduck/cloud/form/util/FormAuthUtils.java#L25-L39","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/UserFormDataServiceImpl.java#L169-L187","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/TDuckCloud/tduck-survey-form/blob/43ffa9c993e38936fc4de7d8e5aee82bbaa19502/tduck-api/src/main/java/com/tduck/cloud/api/web/controller/UserFormController.java#L451-L459","tags":["technical-description"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/tduck-survey-form-6.0-information-disclosure-via-fail-open-form-ownership-check","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":"2026-09-29T17:49:17.063623Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-29T17:51:07.650Z","content_hash":"ad2234c3c5e7836694cf65e223dd7bd46b86598bdf13446699a92b500ac48f21"}}