CVE-2026-70306

critical Microsoft
CVSS v3 Base Score
9.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
EPSS Score
0.6%
Exploitation probability in 30 days
Top 54% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Published: August 11, 2026 (26 days ago)
Last Modified: August 16, 2026
Vendor: Microsoft
Source: NVD

Description

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

CWE

CWE-79

Affected Products

microsoft sharepoint server

References

🔗 msrc.microsoft.com