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.
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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-08T17:41:47.425Z

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 : Modified

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

Modified: 2026-10-08T18:17:12.203

Link: CVE-2021-3199

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses