CVE-2021-3199

Published Jan 22, 2021 CVSS 3.1 · 9.8 Critical EPSS 30.2% KEV · Listed
Description
Directory traversal with remote code execution can occur in /upload in ONLYOFFICE Document Server before 5.6.3, when JWT is used, via a /.. sequence in an image upload parameter.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-26539 Directory traversal with remote code execution can occur in /upload in ONLYOFFICE Document Server before 5.6.3, when JWT is used, via a /.. sequence in an image upload parameter.
History
Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-10-08T00:00:00+00:00', 'dueDate': '2026-10-11T00:00:00+00:00'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 9, 2026, 3:55 AM
Reserved
Jan 21, 2021, 12:00 AM
Status
Analyzed
Published
Jan 26, 2021, 6:16 PM
Modified
Oct 9, 2026, 2:20 PM