CVE-2026-20959

MEDIUM

4.6

Description

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

CVE Details

CVSS v3.1 Score4.6

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionREQUIRED

Published1/13/2026

Last Modified1/14/2026

Sourcenvd

Honeypot Sightings0

Affected Products

microsoft:sharepoint_server

Weaknesses (CWE)

CWE-79

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20959(secure@microsoft.com)

IOC Correlations

No correlations recorded

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