CVE-2026-47637: 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 16.0.19725.20384Patch KB5002873 - 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 16.0.5556.1005Patch KB5002880
Event History
Frequently Asked Questions
What is the severity of CVE-2026-47637?
The severity of CVE-2026-47637 is rated as medium, with a score of 5.4.
How do I fix CVE-2026-47637?
To fix CVE-2026-47637, ensure that you apply the latest security updates provided by Microsoft for SharePoint Server.
What impact does CVE-2026-47637 have on Microsoft SharePoint Server?
CVE-2026-47637 allows an authorized attacker to perform spoofing, which can lead to unauthorized access and manipulation of information.
Which versions of Microsoft SharePoint are affected by CVE-2026-47637?
CVE-2026-47637 affects Microsoft SharePoint Server, Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, and Microsoft SharePoint Server Subscription Edition.
What type of vulnerability is CVE-2026-47637 classified as?
CVE-2026-47637 is classified as a cross-site scripting (XSS) vulnerability.