CVE-2020-16873

Xamarin.Forms Spoofing Vulnerability

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>

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.48% Top 20%
Vendor Advisory microsoft.com
Affected: Microsoft xamarin.forms
Published at:
Updated at:

References

Link Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16873 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-16873?
CVE-2020-16873 has been scored as a medium severity vulnerability.
How to fix CVE-2020-16873?
To fix CVE-2020-16873, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-16873 being actively exploited in the wild?
It is possible that CVE-2020-16873 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-16873?
CVE-2020-16873 affects Microsoft xamarin.forms.
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