CVE-2026-47636: Microsoft SharePoint Server Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized 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 16.0.19725.20384Patch KB5002873 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20153Patch KB5002874
Event History
Frequently Asked Questions
What is the severity of CVE-2026-47636?
The severity of CVE-2026-47636 is medium with a base score of 5.4.
How do I fix CVE-2026-47636?
To fix CVE-2026-47636, apply the latest security updates provided by Microsoft for your SharePoint Server version.
What products are affected by CVE-2026-47636?
CVE-2026-47636 affects Microsoft SharePoint Server, Microsoft SharePoint Server 2019, Microsoft SharePoint Enterprise Server 2016, and Microsoft SharePoint Server Subscription Edition.
What type of vulnerability is CVE-2026-47636?
CVE-2026-47636 is a spoofing vulnerability caused by improper neutralization of input, specifically relating to cross-site scripting.
Can CVE-2026-47636 lead to unauthorized access?
Yes, CVE-2026-47636 can allow an authorized attacker to perform spoofing over a network, potentially leading to unauthorized access.