CVE-2026-3063
Received Received - Intake

Script Injection via Malicious Extension in Chrome DevTools (High

Vulnerability report for CVE-2026-3063, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-02-23

Last updated on: 2026-02-25

Assigner: Chrome

Description

Inappropriate implementation in DevTools in Google Chrome prior to 145.0.7632.116 allowed an attacker who convinced a user to install a malicious extension to inject scripts or HTML into a privileged page via DevTools. (Chromium security severity: High)

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-02-23
Last Modified
2026-02-25
Generated
2026-07-06
AI Q&A
2026-02-24
EPSS Evaluated
2026-07-05
NVD

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
google chrome to 145.0.7632.116 (exc)
google chrome to 145.0.7632.117 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

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Compliance Impact

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Executive Summary

This vulnerability is due to an inappropriate implementation in DevTools in Google Chrome versions prior to 145.0.7632.116. It allows an attacker who convinces a user to install a malicious extension to inject scripts or HTML into a privileged page via DevTools.

Impact Analysis

The impact of this vulnerability is that an attacker can inject malicious scripts or HTML into privileged pages through DevTools if the user installs a malicious extension. This could lead to unauthorized actions or data exposure within the browser environment.

Detection Guidance

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Mitigation Strategies

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