CVE-2026-93643 OnlyOffice Document Editing - Path Traversal & Command Injection

OnlyOffice Document Editing contains a path traversal and command injection caused by unsigned save fields in public Briefcase documents, letting unauthenticated remote attackers write files and execute commands as zimbra, exploit requires access to a supported public Briefcase document.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.96% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
File System Write, Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
25 September 2026
Updated
15 October 2026
Weakness
CWE-22

Vendor fix

Update to the latest version of OnlyOffice Document Editing.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs