CVE-2026-47637: 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 (CVE-2026-47637) affects Microsoft SharePoint Enterprise Server 2016 version 16.0.0. It is classified as CWE-79, indicating improper neutralization of input during web page generation, leading to cross-site scripting. An authorized attacker could exploit this to perform spoofing attacks over a network. The CVSS 3.1 base score is 4.6 (medium severity), with network attack vector, low attack complexity, requiring privileges and user interaction, impacting confidentiality and integrity but not availability. Microsoft has released an official fix for this vulnerability as documented in their security advisory.
Potential Impact
Successful exploitation could allow an authorized attacker to conduct spoofing attacks by injecting malicious scripts during web page generation, potentially compromising confidentiality and integrity of data accessed via the affected SharePoint server. Availability is not impacted. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users of Microsoft SharePoint Enterprise Server 2016 version 16.0.0 should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47637 to remediate this issue.
CVE-2026-47637: 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
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-47637) affects Microsoft SharePoint Enterprise Server 2016 version 16.0.0. It is classified as CWE-79, indicating improper neutralization of input during web page generation, leading to cross-site scripting. An authorized attacker could exploit this to perform spoofing attacks over a network. The CVSS 3.1 base score is 4.6 (medium severity), with network attack vector, low attack complexity, requiring privileges and user interaction, impacting confidentiality and integrity but not availability. Microsoft has released an official fix for this vulnerability as documented in their security advisory.
Potential Impact
Successful exploitation could allow an authorized attacker to conduct spoofing attacks by injecting malicious scripts during web page generation, potentially compromising confidentiality and integrity of data accessed via the affected SharePoint server. Availability is not impacted. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users of Microsoft SharePoint Enterprise Server 2016 version 16.0.0 should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47637 to remediate this issue.
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-2026-47637","vendor":"Microsoft"}]
Threat ID: 6a284cf08dd33fbd8566505b
Added to database: 6/9/2026, 5:27:12 PM
Last enriched: 6/9/2026, 9:58:31 PM
Last updated: 6/10/2026, 6:22:52 AM
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.