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Vulnerability DatabaseCVE-2021-45087

CVE-2021-45087: 
NixOS vulnerability analysis and mitigation

Overview

A cross-site scripting (XSS) vulnerability was discovered in GNOME Web (also known as Epiphany) affecting versions before 40.4 and 41.x before 41.1. The vulnerability manifests when using View Source mode or Reader mode, specifically through manipulation of page titles (NVD).

Technical details

The vulnerability has been assigned a CVSS v3.1 Base Score of 6.1 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation) (NVD).

Impact

When exploited, this vulnerability allows attackers to perform cross-site scripting (XSS) attacks through the browser's View Source mode or Reader mode. The impact is rated as having low confidentiality and integrity impact, with no effect on availability (NVD).

Mitigation and workarounds

The vulnerability has been patched in version 40.4 and 41.1 of GNOME Web. Various Linux distributions have released security updates to address this issue, including Debian with version 3.38.2-1+deb11u1 and Ubuntu with updated packages for versions 20.04 and 22.04 (Debian Advisory, Ubuntu Notice).

Additional resources

Source: This report was generated using AI

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