CVE-2026-105719: Microsoft SharePoint Server Information Disclosure Vulnerability

Overview

Severity

Medium (CVSS 6.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Category

Information Disclosure

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2026-Oct

Released

2026-10-13

Description

Improper input validation in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.

FAQ

What type of information could be disclosed by this vulnerability? Successful exploitation could allow an authenticated user with permissions to create and customize pages to read sensitive server configuration information, including application settings and connection strings. Is the Preview Pane an attack vector for this vulnerability? No, the Preview Pane is not an attack vector.

Affected Products (1)

Microsoft Office

• Microsoft SharePoint Server Subscription Edition

Security Updates (1)

• 5002927

Acknowledgments

<a href="https://hsw109.github.io/">hsw109</a> with Viettel Networks

Revision History

• 2026-10-13: Information published.