Description
Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 – < 16.0.5548.1003 | 16.0.5548.1003 |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 – < 16.0.10417.20114 | 16.0.10417.20114 |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 – < 16.0.19725.20210 | 16.0.19725.20210 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
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B1tBit/CVE-2026-32201-exploit ★ 1 · Apr 22, 2026
A spoofing vulnerability exists in Microsoft SharePoint Server due to improper input validation. An unauthenticated attacker can send a specially crafted HTTP request to inject malicious JavaScript (…
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 3
- WID-SEC-2026-1102 Microsoft Office: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 14, 2026
- NCSC-2026-0116 Kwetsbaarheden verholpen in Microsoft Office NCSC-NL (Netherlands) · Apr 14, 2026
- MSRC-CVE-2026-32201 Microsoft SharePoint Server Spoofing Vulnerability Microsoft Security Response Center · Apr 14, 2026
References
- Microsoft SharePoint Server Spoofing Vulnerability vendor-advisory patch