CVE-2026-65660

Modified Modified - Updated After Analysis

Microsoft SharePoint Code Injection Vulnerability

Publication date: 2026-08-11

Last updated on: 2026-08-27

Assigner: Microsoft Corporation

Description

Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-11

Last Modified

2026-08-27

Generated

2026-08-31

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-65660

EUVD

EUVD-2026-56431

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	sharepoint_server	2019
microsoft	sharepoint_server	2016
microsoft	sharepoint_server	to 16.0.19725.20522 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-94	The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Attack-Flow Graph

Executive Summary

This vulnerability is a code injection flaw in Microsoft Office SharePoint. An authorized attacker can exploit it to perform spoofing attacks over a network by improperly controlling code generation.

Impact Analysis

An attacker could impersonate legitimate users or systems, potentially leading to unauthorized access, data breaches, or misleading communications within your SharePoint environment.

Compliance Impact

This vulnerability could lead to unauthorized access or data exposure, which may violate compliance requirements for data protection and privacy regulations like GDPR or HIPAA.

Mitigation Strategies

Apply the latest security updates from Microsoft for Office SharePoint as soon as possible to address the code injection vulnerability.

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