CVE-2025-5067: Google Chrome XSS Vulnerability

CVE-2025-5067 Overview

CVE-2025-5067 is a UI spoofing vulnerability in the Tab Strip component of Google Chrome prior to version 137.0.7151.55. This inappropriate implementation allows a remote attacker to perform UI spoofing attacks via specially crafted HTML pages. The vulnerability enables attackers to manipulate the visual presentation of browser tabs, potentially deceiving users about the legitimacy of web content they are viewing.

Critical Impact

Remote attackers can craft malicious HTML pages that exploit the Tab Strip implementation flaw to spoof browser UI elements, potentially leading to phishing attacks and user deception.

Affected Products

• Google Chrome prior to version 137.0.7151.55
• All platforms running vulnerable Chrome versions (Windows, macOS, Linux)
• Chromium-based browsers that have not incorporated the fix

Discovery Timeline

• 2025-05-27 - CVE-2025-5067 published to NVD
• 2025-05-29 - Last updated in NVD database

Technical Details for CVE-2025-5067

Vulnerability Analysis

This vulnerability stems from an inappropriate implementation in the Tab Strip component of Google Chrome. The Tab Strip is the UI element that displays browser tabs and provides visual feedback to users about their open pages. The flaw allows attackers to manipulate how tab information is rendered, enabling UI spoofing attacks that can deceive users about the true nature of the web content they are viewing.

The vulnerability is classified under CWE-290 (Authentication Bypass by Spoofing), indicating that the core issue relates to the browser's failure to properly authenticate or validate UI elements, allowing malicious content to impersonate legitimate browser chrome elements.

Root Cause

The root cause lies in the Tab Strip's handling of certain HTML page attributes and rendering logic. The implementation does not properly validate or sanitize how tab-related UI elements are displayed when processing crafted HTML content. This allows malicious pages to influence the visual presentation of the browser's tab interface in ways that should not be permitted.

Attack Vector

The attack is network-based and requires user interaction. An attacker must convince a victim to navigate to a malicious webpage containing specially crafted HTML. Once the victim visits the page, the exploit leverages the Tab Strip implementation flaw to display misleading UI elements.

The attack flow typically involves:

1. Attacker hosts a malicious webpage with crafted HTML designed to exploit the Tab Strip vulnerability
2. Victim is lured to visit the malicious page through phishing or other social engineering techniques
3. The crafted HTML manipulates the Tab Strip rendering to display spoofed UI elements
4. Victim may be deceived into believing they are on a legitimate site or interacting with trusted browser elements

For technical details regarding the specific exploitation mechanism, refer to the Chromium Issue Tracker Entry.

Detection Methods for CVE-2025-5067

Indicators of Compromise

• Unusual or inconsistent tab strip behavior when visiting unknown websites
• Discrepancies between displayed tab information and actual page content
• User reports of suspicious visual anomalies in browser tabs
• Web traffic logs showing access to known malicious domains exploiting this vulnerability

Detection Strategies

• Monitor for Chrome versions prior to 137.0.7151.55 across enterprise endpoints
• Implement browser version auditing through endpoint management solutions
• Deploy web content filtering to block known malicious pages exploiting this vulnerability
• Enable browser telemetry to identify anomalous Tab Strip rendering events

Monitoring Recommendations

• Conduct regular audits of browser versions deployed across the organization
• Monitor security advisories from Google Chrome for related vulnerabilities
• Track user-reported incidents involving suspicious browser UI behavior
• Implement centralized browser management for rapid vulnerability response

How to Mitigate CVE-2025-5067

Immediate Actions Required

• Update Google Chrome to version 137.0.7151.55 or later immediately
• Enable automatic updates for Chrome browsers across all managed endpoints
• Educate users about potential UI spoofing attacks and phishing risks
• Review and enforce browser update policies in enterprise environments

Patch Information

Google has addressed this vulnerability in Chrome version 137.0.7151.55. The security update was announced in the Google Chrome Desktop Update release notes. Organizations should prioritize deploying this update to all Chrome installations.

To verify your Chrome version:

1. Open Chrome and navigate to chrome://settings/help
2. Confirm the version is 137.0.7151.55 or later
3. If an older version is displayed, allow Chrome to update and restart the browser

Workarounds

• Exercise caution when visiting unfamiliar websites until patching is complete
• Verify website authenticity through URL inspection rather than relying solely on tab UI
• Consider using additional browser security extensions that validate site identity
• Implement web filtering solutions to block access to known malicious domains

# Verify Chrome version on Linux/macOS systems
google-chrome --version
# Expected output: Google Chrome 137.0.7151.55 or later

# Force Chrome update check (Windows PowerShell)
# Check Chrome installation directory for current version
Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*' | 
Where-Object { $_.DisplayName -like "*Chrome*" } | 
Select-Object DisplayName, DisplayVersion