CVE-2020-6535 Cross-site scripting in Chrome

Medium 6.1 Published Updated

Remote attackers with compromised renderer access can inject scripts into privileged pages in Google Chrome, enabling code execution and security bypass.

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-2020-6535?

CVE-2020-6535 is a medium-severity cross-site scripting vulnerability in Debian Debian Linux, published on 22 Jul 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

Insufficient data validation in WebUI in Google Chrome prior to 84.0.4147.89 allowed a remote attacker who had compromised the renderer process to inject scripts or HTML into a privileged page via a crafted HTML page.

Weakness: CWE-79

Which versions are affected by CVE-2020-6535?

It affects 5 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Google Chrome, Opensuse Backports Sle, Opensuse Leap.

How do I fix CVE-2020-6535?

Upgrade to a fixed version.

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-2020-6535 being exploited?

There is no known exploitation of CVE-2020-6535 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2020-6535, GHSA-r54p-7rgw-qq7j, UBUNTU-CVE-2020-6535.

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