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CVE-2026-26105

Microsoft Office SharePoint

Microsoft CVSS 8.1 Updated March 15, 2026

Executive Risk Summary

"A cross-site scripting vulnerability in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network, potentially leading to security breaches and data tampering. This vulnerability can be exploited by an attacker to inject malicious scripts into web pages, compromising the security of the SharePoint environment."

Operational Audit Arsenal

Target Type Web Application
Target Asset SharePoint
Standard Path %programfiles%Common FilesMicrosoft SharedWeb Server Extensions
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: SharePoint (Web Application)
$Targets = 'SharePoint'
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")

Get-ChildItem -Path $SearchPaths -Include $Targets -Recurse -ErrorAction SilentlyContinue | 
Select-Object FullName, @{Name="Version";Expression={$_.VersionInfo.ProductVersion}}

Patch Impact Forecast

Reboot Required Unlikely

SharePoint services may be affected

Internal Work Notes

CVE-2026-26105: Cross-site scripting vulnerability in Microsoft Office SharePoint, requiring patching to prevent spoofing attacks

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Intelligence Sources

Related Microsoft Threats

Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.