CVE-2026-48562: 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 16.0.10417.20153Patch KB5002874 - 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 16.0.5556.1005Patch KB5002880
Event History
Frequently Asked Questions
What is the severity of CVE-2026-48562?
The severity of CVE-2026-48562 is medium with a score of 4.6.
How do I fix CVE-2026-48562?
To fix CVE-2026-48562, ensure you apply the latest security updates provided by Microsoft for SharePoint Server.
What systems are affected by CVE-2026-48562?
CVE-2026-48562 affects Microsoft SharePoint Server, SharePoint Server Subscription Edition, and SharePoint Enterprise Server 2016 and 2019.
What type of vulnerability is CVE-2026-48562?
CVE-2026-48562 is classified as a spoofing vulnerability involving improper input neutralization leading to cross-site scripting (XSS).
Who can exploit CVE-2026-48562?
CVE-2026-48562 can be exploited by an authorized attacker over a network.