CVE-2026-47638: 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) is caused by improper neutralization of input during web page generation, leading to cross-site scripting (XSS). An authorized attacker could exploit this flaw to perform spoofing attacks over a network. The CVSS 3.1 base score is 4.6 (medium), reflecting low impact on confidentiality and integrity and no impact on availability. Microsoft has released an official fix to address this issue.
Potential Impact
An authorized attacker can exploit this XSS vulnerability to perform spoofing attacks, potentially misleading users or executing unauthorized scripts in the context of the affected SharePoint server. The impact is limited to confidentiality and integrity with no availability impact. No known exploits are reported in the wild.
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 Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47638 to remediate this vulnerability.
CVE-2026-47638: 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
Microsoft
Microsoft SharePoint Enterprise Server 2016
Microsoft
Microsoft SharePoint Server 2019
Microsoft
Microsoft SharePoint Server Subscription Edition
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-79) in Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) is caused by improper neutralization of input during web page generation, leading to cross-site scripting (XSS). An authorized attacker could exploit this flaw to perform spoofing attacks over a network. The CVSS 3.1 base score is 4.6 (medium), reflecting low impact on confidentiality and integrity and no impact on availability. Microsoft has released an official fix to address this issue.
Potential Impact
An authorized attacker can exploit this XSS vulnerability to perform spoofing attacks, potentially misleading users or executing unauthorized scripts in the context of the affected SharePoint server. The impact is limited to confidentiality and integrity with no availability impact. No known exploits are reported in the wild.
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 Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47638 to remediate this vulnerability.
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-2026-47638","vendor":"Microsoft"}]
Threat ID: 6a284cf08dd33fbd8566505e
Added to database: 06/09/2026, 17:27:12 UTC
Last enriched: 08/14/2026, 13:48:36 UTC
Last updated: 09/14/2026, 22:01:34 UTC
Views: 87
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