CVE-2026-102860

Analyzed Analyzed - Analysis Complete

Improper Access Control in Microsoft Office SharePoint

Publication date: 2026-10-13

Last updated on: 2026-10-14

Assigner: Microsoft Corporation

Description

Improper access control in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-13

Last Modified

2026-10-14

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-102860

EUVD

EUVD-2026-99043

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	sharepoint_server	to 16.0.20326.20190 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This vulnerability is an improper access control issue in Microsoft Office SharePoint. An authorized attacker can exploit it over a network to elevate their privileges, gaining higher permissions than intended.

Impact Analysis

An attacker could gain elevated access to sensitive data or systems within SharePoint, potentially leading to unauthorized modifications, data theft, or further network compromise.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating compliance requirements such as GDPR or HIPAA, which mandate strict access controls and data protection measures.

Mitigation Strategies

Apply the latest security updates from Microsoft for SharePoint Server to address improper access control issues. Monitor Microsoft's official security advisories for patches and follow their recommended mitigation steps.

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