Cross-site scripting in GNOME Web (Epiphany) - CVE-2021-45085

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Main Vulnerability Database Vulnerabilities #VU59662

Cross-site scripting in GNOME Web (Epiphany) - CVE-2021-45085

Published: January 17, 2022


Vulnerability identifier: #VU59662
CSH Severity: High
CVSSv4.0: 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/E:U/U:Amber
CVE-ID: CVE-2021-45085
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
GNOME Web (Epiphany)
Software vendor:
Gnome Development Team

Description

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

The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via an "about: page" URL. A remote attacker can permanently store and execute arbitrary JavaScript code on the affected system, when the victim opens the Most Visited list tab (ephy-about:overview) in browser.


Remediation

Install update from vendor's website.

External links