Aug 2026: Microsoft SharePoint Server Elevation of Privilege Vulnerability
CVE-2026-70355 Published on August 11, 2026
Microsoft SharePoint Server Elevation of Privilege Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-70355 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-70355
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Affected Versions
Microsoft SharePoint Server 2019:- Version 16.0.0 and below 16.0.10417.20198 is affected.
- Version 16.0.0 and below 16.0.19725.20522 is affected.