External Control of File Name or Path in Microsoft SharePoint Server - CVE-2026-54108

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Main Vulnerability Database Vulnerabilities #VU138284

External Control of File Name or Path in Microsoft SharePoint Server - CVE-2026-54108

Published: July 17, 2026


Vulnerability identifier: #VU138284
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-54108
CWE-ID: CWE-73
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Microsoft SharePoint Server

Detailed vulnerability description

The vulnerability allows a remote user to disclose sensitive information.

The vulnerability exists due to external control of file name or path in Microsoft Office SharePoint when handling network requests. A remote user can manipulate a file name or path to disclose sensitive information.


How to mitigate CVE-2026-54108

Install security update from vendor's website.

Sources