CVE-2026-47638: Microsoft SharePoint Server Spoofing Vulnerability
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 SharePoint Server Spoofing Vulnerability
— Microsoft
Affected Software
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 16.0.5556.1005Patch KB5002880 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20153Patch KB5002874 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.19725.20384Patch KB5002873
Event History
Frequently Asked Questions
What is the severity of CVE-2026-47638?
The severity of CVE-2026-47638 is classified as medium with a CVSS score of 5.4.
What type of vulnerability is CVE-2026-47638?
CVE-2026-47638 is a spoofing vulnerability associated with cross-site scripting in Microsoft SharePoint.
How can CVE-2026-47638 be mitigated?
Mitigation of CVE-2026-47638 involves applying security updates provided by Microsoft for the affected SharePoint products.
Who is affected by CVE-2026-47638?
CVE-2026-47638 affects installations of Microsoft SharePoint Server, including its various editions.
What are the potential impacts of CVE-2026-47638?
An attacker exploiting CVE-2026-47638 could perform spoofing attacks over a network, potentially misleading users.