CVE-2026-62826

Received Received - Intake

Cross-Site Scripting in Microsoft Office SharePoint

Publication date: 2026-07-16

Last updated on: 2026-07-16

Assigner: Microsoft Corporation

Description

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-16

Last Modified

2026-07-16

Generated

2026-07-17

AI Q&A

2026-07-17

EPSS Evaluated

N/A

NVD

CVE-2026-62826

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	office_sharepoint	*

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 cross-site scripting (XSS) flaw in Microsoft Office SharePoint. It occurs when user input is not properly neutralized during web page generation, allowing an attacker to inject malicious scripts into web pages viewed by other users.

Impact Analysis

An attacker could exploit this to perform spoofing attacks, tricking users into revealing sensitive information or performing unintended actions. It may lead to unauthorized data access or session hijacking if users interact with the malicious content.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR (data protection) and HIPAA (health information privacy). Non-compliance may result in legal penalties, reputational damage, and loss of trust due to unauthorized data exposure.

Mitigation Strategies

Apply the latest security updates from Microsoft for Office SharePoint to patch the XSS vulnerability. Monitor Microsoft's security advisories for patches and implement network-level protections like WAF rules to filter malicious input.

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