Improper access control in Microsoft SharePoint Server - CVE-2026-69268
Published: September 8, 2026
Vulnerability identifier: #VU147542
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-69268
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute code.
The vulnerability exists due to improper access control in the site export operation when starting a site export operation. A remote user can start a site export operation that does not correctly enforce permission checks on sub-sites to execute code.
Exploitation requires site-management permissions on a SharePoint site.
Affected software
Microsoft SharePoint Server
How to mitigate CVE-2026-69268
Install security update from vendor's website.
Microsoft SharePoint Server - update to 16.0.20326.20090