CVE-2019-20528 Ignite Realtime Openfire allows Cross-site Scripting

Medium 6.1 Published Updated

Cross-site scripting in Openfire setup allows attackers to inject scripts via the username parameter, potentially compromising user sessions.

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
Available

What is CVE-2019-20528?

CVE-2019-20528 is a medium-severity cross-site scripting vulnerability in n/a, published on 18 Mar 2020. 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

Ignite Realtime Openfire 4.4.1 allows XSS via the setup/setup-datasource-standard.jsp username parameter.

Weakness: CWE-79

Which versions are affected by CVE-2019-20528?

2 open source packages ship an affected version, including org.igniterealtime.openfire:xmppserver. It affects 1 product.

PackageAffectedFixed in
org.igniterealtime.openfire:xmppserver MavenAll versions4.4.2
org.igniterealtime.openfire:xmppserver MavenAll versions4.4.2

Products include Igniterealtime Openfire.

How do I fix CVE-2019-20528?

Upgrade org.igniterealtime.openfire:xmppserver to 4.4.2 or later.

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-2019-20528 being exploited?

There is no known exploitation of CVE-2019-20528 in the wild and no public exploit code.

Sources

Also known as GHSA-wx2w-8pqw-vp4g.

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