Universal cross-site scripting in Google Chrome - CVE-2020-6506

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Main Vulnerability Database Vulnerabilities #VU29049

Universal cross-site scripting in Google Chrome - CVE-2020-6506

Published: June 15, 2020 / Updated: October 1, 2020


Vulnerability identifier: #VU29049
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2020-6506
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the Google Chrome WebView system component. The vulnerability allows cross-origin iframes to execute arbitrary JavaScript in the top-level document.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


Affected software

Google Chrome
Gentoo Linux
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Fedora
SUSE Linux
Opensuse
react-native-webview
chromium (Debian package)
chromium-browser (Red Hat package)
chromium (Alpine package)
chromium

How to mitigate CVE-2020-6506

Update to version 83.0.4103.106.

Google Chrome - update to 83.0.4103.106
chromium (Debian package) - update to 83.0.4103.116-1~deb10u1
chromium-browser (Red Hat package) - update to 83.0.4103.106-1.el6_10
chromium (Alpine package) - update to 83.0.4103.116-r0
chromium - addressed in versions 83.0.4103.106-1.el7, 83.0.4103.106-1.el8, 83.0.4103.106-1.fc31, 83.0.4103.106-1.fc32, 83.0.4103.116-3.el7, 83.0.4103.116-3.el8, 83.0.4103.116-3.fc31, 83.0.4103.116-3.fc32

External References

Related Security Bulletins