CVE-2026-45467: 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-2026-45467?
CVE-2026-45467 has a medium severity rating of 5.4.
How do I fix CVE-2026-45467?
To mitigate CVE-2026-45467, apply the latest security updates provided by Microsoft for affected SharePoint Server versions.
What type of vulnerability is CVE-2026-45467?
CVE-2026-45467 is classified as a spoofing vulnerability due to improper handling of input during web page generation.
Who is affected by CVE-2026-45467?
Users of Microsoft SharePoint Server, including versions 2016, Subscription Edition, and 2019, are affected by CVE-2026-45467.
What can an attacker do with CVE-2026-45467?
An attacker can exploit CVE-2026-45467 to perform spoofing attacks over a network, potentially misleading users.