CVE-2018-20160

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 2.67% Top 15%
Vendor Advisory zimbra.com Vendor Advisory zimbra.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories vendor advisory
https://wiki.zimbra.com/wiki/Security_Center release notes vendor advisory
https://bugzilla.zimbra.com/show_bug.cgi?id=109093 issue tracking third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-20160?
CVE-2018-20160 has been scored as a critical severity vulnerability.
How to fix CVE-2018-20160?
To fix CVE-2018-20160, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-20160 being actively exploited in the wild?
It is possible that CVE-2018-20160 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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