UI Spoofing Vulnerability in Google Chrome Fullscreen Mode

Publication date: 2026-04-08

Last updated on: 2026-04-14

Assigner: Chrome

Description

Incorrect security UI in Fullscreen in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-04-08

Last Modified

2026-04-14

Generated

2026-07-06

AI Q&A

2026-04-09

EPSS Evaluated

2026-07-05

NVD

CVE-2026-5882

EUVD

EUVD-2026-20691

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 147.0.7727.55 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-451	The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks.

Attack-Flow Graph

Executive Summary

This vulnerability is an incorrect security user interface (UI) issue in the Fullscreen mode of Google Chrome versions prior to 147.0.7727.55. It allows a remote attacker to perform UI spoofing by using a specially crafted HTML page.

Impact Analysis

The vulnerability can impact users by enabling attackers to spoof the browser's UI while in Fullscreen mode. This can mislead users into believing they are interacting with legitimate browser elements or trusted content, potentially leading to phishing attacks or other forms of deception.

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