When OnlyOffice/Document Editing is available, an unauthenticated remote attacker with access to an existing supported public Briefcase document can abuse unsigned save fields to perform path-traversal writes and execute commands as zimbra.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sat, 26 Sep 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Zimbra
Zimbra zimbra Collaboration Suite
Vendors & Products Zimbra
Zimbra zimbra Collaboration Suite

Sat, 26 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 25 Sep 2026 14:15:00 +0000

Type Values Removed Values Added
Description When OnlyOffice/Document Editing is available, an unauthenticated remote attacker with access to an existing supported public Briefcase document can abuse unsigned save fields to perform path-traversal writes and execute commands as zimbra.
Title Zimbra Collaboration Suite OnlyOffice Integration Path Traversal Leading to Remote Code Execution via Unauthenticated /downloadas Request
Weaknesses CWE-22
CWE-863
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: rapid7

Published:

Updated: 2026-09-26T03:55:49.487Z

Reserved: 2026-09-18T12:22:38.559Z

Link: CVE-2026-93643

cve-icon Vulnrichment

Updated: 2026-09-25T16:10:06.875Z

cve-icon NVD

Status : Received

Published: 2026-09-25T14:17:23.550

Modified: 2026-09-26T04:17:51.710

Link: CVE-2026-93643

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-26T22:30:58Z

Weaknesses