CVE-2026-64900: Spoofing 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 involves improper neutralization of input during web page generation in Microsoft SharePoint Enterprise Server 2016, enabling an authorized attacker to conduct spoofing attacks via cross-site scripting. The CVSS 3.1 base score is 7.3, indicating high severity with network attack vector, low attack complexity, and required privileges. Microsoft has released an official fix for this vulnerability.
Potential Impact
Successful exploitation can lead to high impact on confidentiality and integrity, allowing an attacker to spoof content in the SharePoint environment. Availability is not affected. The attacker must have some level of privileges and user interaction is required.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the patch provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64900 to remediate this vulnerability.
CVE-2026-64900: Spoofing 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 7.3high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper neutralization of input during web page generation in Microsoft SharePoint Enterprise Server 2016, enabling an authorized attacker to conduct spoofing attacks via cross-site scripting. The CVSS 3.1 base score is 7.3, indicating high severity with network attack vector, low attack complexity, and required privileges. Microsoft has released an official fix for this vulnerability.
Potential Impact
Successful exploitation can lead to high impact on confidentiality and integrity, allowing an attacker to spoof content in the SharePoint environment. Availability is not affected. The attacker must have some level of privileges and user interaction is required.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the patch provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64900 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-20T20:25:40.975Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64900","vendor":"Microsoft"}]
Threat ID: 6a7b5828bf8831d5391562b7
Added to database: 08/11/2026, 17:13:12 UTC
Last enriched: 08/11/2026, 20:28:35 UTC
Last updated: 08/12/2026, 01:01:06 UTC
Views: 2
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