CVE-2020-16873

Description

<p>A spoofing vulnerability manifests in Microsoft Xamarin.Forms due to the default settings on Android WebView version prior to 83.0.4103.106. This vulnerability could allow an attacker to execute arbitrary Javascript code on a target system.</p> <p>For the attack to be successful, the targeted user would need to browse to a malicious website or a website serving the malicious code through Xamarin.Forms.</p> <p>The security update addresses this vulnerability by preventing the malicious Javascript from running in the WebView.</p>

Weakness classification

• CWE-1188: Initialization of a Resource with an Insecure Default

Primary references

• secure@microsoft.com — Patch, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory