CVE-2026-93643

critical

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.

References

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-87101

Details

Source: Mitre, NVD

Published: 2026-09-25

Updated: 2026-09-29

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.0096