CVE-2018-20160 XML external entity in n/a

Critical 9.8 Published Updated

Attackers can exploit XML External Entity vulnerabilities in Zimbra Chat to read sensitive data or execute code via crafted requests.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-20160?

CVE-2018-20160 is a critical vulnerability in Synacor Zimbra Collaboration Suite, published on 29 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-611

Which versions are affected by CVE-2018-20160?

It affects 1 product.

Products include Synacor Zimbra Collaboration Suite.

How do I fix CVE-2018-20160?

No fix has been published for CVE-2018-20160 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-20160 being exploited?

There is no known exploitation of CVE-2018-20160 in the wild and no public exploit code.

All Synacor Zimbra Collaboration Suite vulnerabilities

Sources

Also known as GHSA-gmm3-34hf-wcmj.

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