CVE-2026-102864: Microsoft Office SharePoint Spoofing Vulnerability
Published Oct 13, 2026
·Updated
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.
Other sources
Microsoft Office SharePoint Spoofing Vulnerability
— Microsoft
Affected Software
1 affected componentFixes available
Microsoft SharePoint Server Subscription Edition<16.0.20326.20190
16.0.20326.20190
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.20326.20190Patch KB5002927
Event History
Oct 13, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·06:59 PM
Data Sourced
via MITRE·06:59 PM
DescriptionSeverity
Data Sourced
via NVD·07:17 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What level of access does an attacker need to exploit this issue?
The attacker must be authorized and have low-level privileges in the affected SharePoint environment. Exploitation is performed over the network and also requires user interaction.
2
Which product is identified as affected?
The affected software listed is Microsoft SharePoint Server Subscription Edition.