{"schema":"threatline.record/2","record":{"id":"CVE-2026-39991","aliases":[],"summary":"Stored Cross-Site Scripting (XSS) in Note Station file upload functionality","details":"A cross-site scripting (XSS) vulnerability has been reported to affect Notes Station 3. If a remote attacker gains a user account, they can then exploit the vulnerability to inject malicious code.\n\nWe have already fixed the vulnerability in the following version:\nNotes Station 3 3.9.12 and later","categories":["Unclassified"],"product":"Notes Station 3","vendor":"QNAP Systems Inc.","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-39991","source_modified_at":"2026-10-19T08:06:45.355Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Notes Station 3","vendor":"QNAP Systems Inc.","versions":[{"status":"affected","version":"3.9.x","lessThan":"3.9.12","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-39991","source_modified_at":"2026-10-19T08:06:45.355Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Notes Station 3","ecosystem":null},"version":"3.9.12","basis":"first unaffected version stated in the CVE record"}],"cvss":4.8,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00293,"percentile":0.20768,"score_date":"2026-10-23"},"published_at":"2026-10-15T09:37:51.830Z","modified_at":"2026-10-19T08:06:45.355Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-39991","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T08:06:45.355Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-39991","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.qnap.com/en/app-release-notes?keyword=Notes%20Station%203&app=NotesStation3&product-line=nas","tags":["release-notes"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-15T13:32:48.713397Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-19T08:06:45.355Z","content_hash":"ad740a1d58326c3d18a88e5ae3f88b9f774f1fef531efdd53accd94a0b69d91d"}}