CVE-2020-6506 Android WebView Universal Cross-site Scripting

Medium 6.5 Published Updated

Remote attackers can bypass site isolation in Chrome Android WebView via crafted HTML, compromising security boundaries.

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-2020-6506?

CVE-2020-6506 is a medium-severity vulnerability in Google Chrome, 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 policy enforcement in WebView in Google Chrome on Android prior to 83.0.4103.106 allowed a remote attacker to bypass site isolation via a crafted HTML page.

Which versions are affected by CVE-2020-6506?

2 open source packages ship an affected version, including react-native-webview. It affects 1 product.

PackageAffectedFixed in
react-native-webview npmAll versions11.0.0
react-native-webview npmAll versions11.0.0

Products include Google Chrome.

How do I fix CVE-2020-6506?

Upgrade react-native-webview to 11.0.0 or later.

Is CVE-2020-6506 being exploited?

There is no known exploitation of CVE-2020-6506 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2020-6506, GHSA-36j3-xxf7-4pqg, UBUNTU-CVE-2020-6506.

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