Cross-Site Scripting in Microsoft Edge Chromium

Publication date: 2026-07-03

Last updated on: 2026-07-03

Assigner: Microsoft Corporation

Description

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-03

Last Modified

2026-07-03

Generated

2026-07-04

AI Q&A

2026-07-04

EPSS Evaluated

N/A

NVD

CVE-2026-58524

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	edge	*

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 a type of cross-site scripting (XSS) found in Microsoft Edge (Chromium-based). It occurs because the browser improperly neutralizes input during web page generation, which means that malicious input can be executed as code. An unauthorized attacker can exploit this flaw to perform spoofing attacks over a network.

Impact Analysis

Exploitation of this vulnerability can allow an attacker to perform spoofing attacks, potentially misleading users by displaying false or deceptive information. This can lead to compromised user trust, exposure to further attacks, or unauthorized actions performed in the context of the affected browser.

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