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.
Published: 2021-01-22
Score: 9.8 Critical
EPSS: 20.1% Moderate
KEV: Yes
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

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

Thu, 08 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

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


Thu, 08 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
Metrics kev

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


Subscriptions

Onlyoffice Document Server
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-09T03:55:31.111Z

Reserved: 2021-01-21T00:00:00.000Z

Link: CVE-2021-3199

cve-icon Vulnrichment

Updated: 2024-08-03T16:45:51.411Z

cve-icon NVD

Status : Analyzed

Published: 2021-01-26T18:16:28.507

Modified: 2026-10-09T14:20:47.350

Link: CVE-2021-3199

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-22

    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')