Summary
Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
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.
Security updates
16.0.20326.20190 — https://support.microsoft.com/help/5002927
Vulnerabilities 1
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Medium 6.5
Microsoft SharePoint Server Information Disclosure Vulnerability
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
Revision history
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#1
Information published.
References
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CVE-2026-105719 Microsoft SharePoint Server Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105719
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss