Inappropriate Implementation in MHTML in Google Chrome Allows UXSS

Publication date: 2026-05-06

Last updated on: 2026-05-07

Assigner: Chrome

Description

Inappropriate implementation in MHTML in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium security severity: Low)

CVSS Scores

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Meta Information

Published

2026-05-06

Last Modified

2026-05-07

Generated

2026-07-06

AI Q&A

2026-05-06

EPSS Evaluated

2026-07-05

NVD

CVE-2026-8012

EUVD

EUVD-2026-28127

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 148.0.7778.96 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is an inappropriate implementation in the MHTML feature of Google Chrome versions prior to 148.0.7778.96. It allows a remote attacker who has already compromised the renderer process to inject arbitrary scripts or HTML content through a specially crafted HTML page. This type of attack is known as Universal Cross-Site Scripting (UXSS).

Impact Analysis

If exploited, this vulnerability could allow an attacker to execute arbitrary scripts or inject malicious HTML in the context of the affected browser. This could lead to unauthorized actions such as stealing sensitive information, manipulating web content, or performing actions on behalf of the user within the compromised renderer process.

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