CVE-2018-20160

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

ZxChat (aka ZeXtras Chat), as used for zimbra-chat and zimbra-talk in Synacor Zimbra Collaboration Suite 8.7 and 8.8 and in other products, allows XXE attacks, as demonstrated by a crafted XML request to mailboxd.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
May 29, 2019
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-20160: Critical severity, CVSS 9.8 | Vulnix