CVE-2026-47640: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Microsoft Microsoft SharePoint Enterprise Server 2016
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.
AI Analysis
Technical Summary
This vulnerability (CWE-79) in Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) allows an authorized attacker to exploit improper input neutralization during web page generation, leading to cross-site scripting. The attacker can perform spoofing attacks over a network. The CVSS 3.1 base score is 4.6 (medium severity), reflecting low impact on confidentiality and integrity, no impact on availability, and requiring low attack complexity with privileges and user interaction. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to conduct cross-site scripting attacks, potentially leading to spoofing over a network. The impact on confidentiality and integrity is limited, with no impact on availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users of Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) should apply the vendor-provided patch as detailed in the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47640.
CVE-2026-47640: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Microsoft Microsoft SharePoint Enterprise Server 2016
Description
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.
CVSS v3.1
Score 4.6medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-79) in Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) allows an authorized attacker to exploit improper input neutralization during web page generation, leading to cross-site scripting. The attacker can perform spoofing attacks over a network. The CVSS 3.1 base score is 4.6 (medium severity), reflecting low impact on confidentiality and integrity, no impact on availability, and requiring low attack complexity with privileges and user interaction. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to conduct cross-site scripting attacks, potentially leading to spoofing over a network. The impact on confidentiality and integrity is limited, with no impact on availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users of Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) should apply the vendor-provided patch as detailed in the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47640.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-19T20:12:27.070Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47640","vendor":"Microsoft"}]
Threat ID: 6a284cf08dd33fbd85665064
Added to database: 06/09/2026, 17:27:12 UTC
Last enriched: 07/29/2026, 22:06:12 UTC
Last updated: 07/31/2026, 21:26:45 UTC
Views: 73
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