{"id":"CVE-2026-93643","title":"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.","summary":"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.","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-22","CWE-863"],"vendor":"Zimbra","product":"Zimbra Collaboration Suite (ZCS)","affected":["collaboration_suite_zcs < 10.1.21"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T17:17:19.860","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93643","references":[{"url":"https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories","label":"cve@rapid7.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-25T16:09:45.670290Z"},"ingestedAt":"2026-09-25T14:09:46.366Z","slug":"CVE-2026-93643","body":"## Overview\n\nWhen 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}