CVE-2019-6146 Cross-site scripting in Forcepoint Web Security

Medium 6.1 Published Updated

Attackers can inject malicious scripts via host header injection in Forcepoint Web Security, potentially stealing user data.

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-2019-6146?

CVE-2019-6146 is a medium-severity cross-site scripting vulnerability in Forcepoint Web Security, published on 22 Jan 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

It has been reported that cross-site scripting (XSS) is possible in Forcepoint Web Security, version 8.x, via host header injection. CVSSv3.0: 5.3 (Medium) (/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Weakness: CWE-79

Which versions are affected by CVE-2019-6146?

It affects 1 product.

Products include Forcepoint Web Security.

How do I fix CVE-2019-6146?

No fix has been published for CVE-2019-6146 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-2019-6146 being exploited?

There is no known exploitation of CVE-2019-6146 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-wwr9-73jw-v7jx.

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