{"id":"cisa-kev-cve-2021-3199","seq":19,"kind":"advisory","title":"[悪用確認] CVE-2021-3199: ONLYOFFICE Docs Server Path Traversal Vulnerability","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3199","permalink":"https://vulnpulse.app/items/cisa-kev-cve-2021-3199","summary":"ONLYOFFICE Docs\nONLYOFFICE Docs contains a path traversal vulnerability that can occur when JWT is used, via a /.. sequence in an image upload parameter and could allow for remote code execution.\n対応: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. (期限 2026-10-11)","severity":"critical","techs":[],"cves":["CVE-2021-3199"],"tags":["exploited","kev","ONLYOFFICE","Docs"],"source":{"id":"cisa-kev","name":"CISA Known Exploited Vulnerabilities"},"published_at":"2026-10-08T00:00:00.000Z","fetched_at":"2026-10-21T16:17:45.406Z"}