Missing Authorization in Microsoft SharePoint Server - CVE-2026-69465
Published: September 8, 2026
Vulnerability identifier: #VU147718
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-2026-69465
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to missing authorization in Microsoft Office SharePoint when processing specially crafted page markup. A remote user can submit specially crafted page markup that bypasses a control-safety check and causes the server to load a code library from a remote network location under their control to execute arbitrary code.
The user must have permission to edit page content on a SharePoint site. User interaction is not required.
Affected software
Microsoft SharePoint Server
How to mitigate CVE-2026-69465
Install security update from vendor's website.
Microsoft SharePoint Server - update to 16.0.20326.20074