CVE-2020-16873
MEDIUMEPSS 89th pctlDescription
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. 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. The security update addresses this vulnerability by preventing the malicious Javascript from running in the WebView.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Exploit Intelligence
Elevated risk: more likely to be exploited than 89% of all known CVEs.
References
Embed a live status badge for CVE-2020-16873
Markdown
[](https://tridentstack.com/cve/CVE-2020-16873)HTML
<a href="https://tridentstack.com/cve/CVE-2020-16873"><img src="https://tridentstack.com/cve/badge/CVE-2020-16873.svg" alt="CVE-2020-16873"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-23.