CVE-2026-70355

Published: Aug 11, 2026Modified: Aug 13, 2026

8.7

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Exploitability: 2.3 / Impact: 5.8

Source: NVD

Description

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.

Affected (2)

Products: Microsoft: Sharepoint Server

Microsoft

1 product

Sharepoint Server

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Microsoft Sharepoint Server	Before 16.0.19725.20522
Microsoft Sharepoint Server	Version 2019

Related CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product 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.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70355

Source: secure@microsoft.com

Vendor AdvisoryPatch

Timeline

No history available yet.