BaseFortify

Publication date: 2025-11-10

Last updated on: 2025-11-13

Assigner: Chrome

Description

Policy bypass in Extensions in Google Chrome prior to 142.0.7444.59 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Low)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2025-11-10

Last Modified

2025-11-13

Generated

2026-07-06

AI Q&A

2025-11-10

EPSS Evaluated

2026-07-05

NVD

CVE-2025-12445

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 142.0.7444.59 (exc)
apple	macos	*
linux	linux_kernel	*
microsoft	windows	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-288	The product requires authentication, but the product has an alternate path or channel that does not require authentication.

Attack-Flow Graph

Executive Summary

This vulnerability is a policy bypass in Google Chrome extensions prior to version 142.0.7444.59. It allows an attacker who convinces a user to install a malicious extension to leak cross-origin data by exploiting the crafted Chrome extension.

Impact Analysis

If exploited, this vulnerability can lead to unauthorized leakage of data across different origins, potentially exposing sensitive information to attackers through a malicious Chrome extension installed by the user.

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