CVE-2020-6506: Android WebView Universal Cross-site Scripting
6.5
CVSS Score
3.1
Basic Information
CVE ID
GHSA ID
EPSS Score
0.8171%
CWE
Published
10/2/2020
Updated
1/27/2023
KEV Status
No
Technology
JavaScript
Technical Details
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
---|---|---|---|
react-native-webview | npm | <= 10.10.2 | 11.0.0 |
Vulnerability Intelligence
Miggo AI
Root Cause Analysis
The vulnerability stems from Android WebView's default handling of window creation when multi-window support is disabled. The react-native-webview
implementation prior to 11.0.0
did not enable setSupportMultipleWindows
, leaving apps vulnerable to UXSS
. The patched version (11.0.0
) introduced explicit control via setSupportMultipleWindows
prop and enabled it by default, aligning with Chromium
's security fixes in Android WebView 83+
.