What’s Vulnerable › Vulnerabilities
CVE-2026-97783: Microsoft Office SharePoint Spoofing Vulnerability
- Severity: medium (CVSS 6.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-13 · updated 2026-10-31
- Weakness: CWE-79
Description
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.
Affected products
- Microsoft SharePoint Server: 2019
- Microsoft SharePoint Server Subscription Edition: from 16.0.0 before 16.0.19725.20434 — fixed in 16.0.19725.20434
- Microsoft Sharepoint Enterprise Server 2016: from 16.0.0 before 16.0.5561.1001 — fixed in 16.0.5561.1001
- Microsoft SharePoint Server: from 16.0.0 before 16.0.10417.20175 — fixed in 16.0.10417.20175
How to fix
Upgrade to a fixed version: Microsoft SharePoint Server Subscription Edition 16.0.19725.20434; Microsoft Sharepoint Enterprise Server 2016 16.0.5561.1001; Microsoft SharePoint Server 16.0.10417.20175. Check the vendor advisory for mitigations.
In the news
References
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