CVE-2019-3638 Web Gateway (MWG) - Reflected Cross Site Scripting vulnerability

High 8.1 Published 12 Sep 2019 Updated 4 Aug 2024

Remote attackers can execute commands or steal data by tricking administrators into clicking malicious links in the McAfee Web Gateway console.

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-2019-3638?

CVE-2019-3638 is a high-severity cross-site scripting vulnerability in McAfee Web Gateway(MWG), published on 12 Sep 2019. 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

Reflected Cross Site Scripting vulnerability in Administrators web console in McAfee Web Gateway (MWG) 7.8.x prior to 7.8.2.13 allows remote attackers to collect sensitive information or execute commands with the MWG administrator's credentials via tricking the administrator to click on a carefully constructed malicious link.

Weakness: CWE-79

Which versions are affected by CVE-2019-3638?

It affects 1 product.

Products include Mcafee Web Gateway.

How do I fix CVE-2019-3638?

No fix has been published for CVE-2019-3638 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-2019-3638 being exploited?

There is no known exploitation of CVE-2019-3638 in the wild and no public exploit code.

Sources

Also known as GHSA-32j9-3fgh-fpcp.