{"uuid": "cb8db69c-aec2-49e4-9eb8-3483029ba585", "vulnerability": {"vulnId": "CVE-2021-3199", "altId": []}, "gcve": {"origin_uuid": "caeb2787-0d58-4236-9039-7c86c3e566f3", "object_uuid": "cb8db69c-aec2-49e4-9eb8-3483029ba585"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2026-10-08T19:40:54+02:00"}, "timestamps": {"asserted_at": "2026-10-08T17:40:54+00:00", "recorded_at": "2026-10-10T04:43:02+00:00", "first_seen_at": "2026-10-08T17:40:54+00:00"}, "scope": {"notes": "Directory traversal with remote code execution can occur in /upload in ONLYOFFICE Document Server before 5.6.3, when JWT is used, via a /..... | Affected: Onlyoffice / Document Server | CVSS: 9.8 (CRITICAL) | EPSS: 0.14548 | Used in malware: unknown | Not yet in CISA KEV: False"}, "evidence": [{"type": "public_report", "source": "previdian", "signal": "successful_exploitation", "confidence": 0.7, "details": {"feed": "Previdian (previdian.com)", "title": "Directory traversal with remote code execution can occur in /upload in ONLYOFFICE Document Server before 5.6.3, when JWT is used, via a /.....", "cve_id": "CVE-2021-3199", "vendor": "Onlyoffice", "ghsa_id": null, "product": "Document Server", "added_date": "2026-10-08T17:40:54.331Z", "cvss_score": 9.8, "epss_score": 0.14548, "previous_ids": [], "cvss_severity": "CRITICAL", "virtual_patch": false, "cvss_estimated": false, "epss_percentile": 0.96569, "used_in_malware": "unknown", "vulnerability_id": "CVE-2021-3199", "ahead_of_cisa_kev": null, "not_yet_in_cisa_kev": false}}], "references": [{"id": "CVE-2021-3199", "url": "https://www.cve.org/CVERecord?id=CVE-2021-3199"}, {"id": "previdian", "url": "https://previdian.com/CVE-2021-3199"}]}