CVE-2018-10939 Cross-site scripting in n/a

Medium 6.1 Published Updated

Attackers can inject persistent scripts via contact groups in Zimbra Web Client, potentially stealing user sessions or executing malicious code.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2018-10939?

CVE-2018-10939 is a medium-severity cross-site scripting vulnerability in Synacor Zimbra Collaboration Suite, published on 30 May 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Zimbra Web Client (ZWC) in Zimbra Collaboration Suite 8.8 before 8.8.8.Patch4 and 8.7 before 8.7.11.Patch4 has Persistent XSS via a contact group.

Weakness: CWE-79

Which versions are affected by CVE-2018-10939?

It affects 2 products.

Products include Synacor Zimbra Collaboration Suite, Zimbra Zimbra Collaboration Suite.

How do I fix CVE-2018-10939?

No fix has been published for CVE-2018-10939 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2018-10939 being exploited?

There is no known exploitation of CVE-2018-10939 in the wild and no public exploit code.

All Synacor Zimbra Collaboration Suite vulnerabilities

Sources

Also known as GHSA-jwrc-jxj5-hqh2.

Is CVE-2018-10939 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free