{"schema":"threatline.record/2","record":{"id":"CVE-2026-51876","aliases":[],"summary":"DeepTutor 1.4.0 contains an authorization bypass vulnerability in the book confirmation flow. An unauthenticated or unauthorized caller can reuse a publicly exposed book_id to submit a confirm-proposa","details":"DeepTutor 1.4.0 contains an authorization bypass vulnerability in the book confirmation flow. An unauthenticated or unauthorized caller can reuse a publicly exposed book_id to submit a confirm-proposal request for an existing book, causing unauthorized overwrites of persisted metadata and spine content.","categories":["Unclassified"],"product":"n/a","vendor":"n/a","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-51876","source_modified_at":"2026-10-05T23:53:01.378Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"n/a","vendor":"n/a","versions":[{"version":"n/a","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":9.1,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00256,"percentile":0.16305,"score_date":"2026-10-23"},"published_at":"2026-10-01T00:00:00.000Z","modified_at":"2026-10-05T23:53:01.378Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-51876","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-05T23:53:01.378Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-51876","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/HKUDS/DeepTutor/issues/514","tags":["exploit"]},{"source":"CVE List","url":"https://gist.github.com/Ro1ME/c5685936179edcbf942f3fdd745d1473"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"poc","automatable":"yes","technical_impact":"total","assessed_at":"2026-10-05T23:51:10.775228Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-05T23:53:01.378Z","content_hash":"3bd105364d7e202b0f1693b06431ff3747341687a85dec654c2b35c91d2efde2"}}