CVE-2026-33113: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Microsoft Microsoft SharePoint Enterprise Server 2016
CVE-2026-33113 is a medium severity cross-site scripting (XSS) vulnerability in Microsoft SharePoint Enterprise Server 2016. It involves improper neutralization of input during web page generation, allowing an authorized attacker to perform spoofing over a network. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-33113) 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, which leads to cross-site scripting (XSS). An authorized attacker could exploit this flaw to perform spoofing attacks over a network. The CVSS v3.1 base score is 5.4 (medium severity), with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality and integrity. Microsoft has released an official fix for this vulnerability.
Potential Impact
Successful exploitation could allow an authorized attacker to conduct spoofing attacks, potentially leading to limited confidentiality and integrity impacts. There is no indication of availability impact. The vulnerability requires user interaction and no privileges, making it moderately exploitable over a network.
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 advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33113 to remediate this vulnerability.
CVE-2026-33113: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Microsoft Microsoft SharePoint Enterprise Server 2016
Description
CVE-2026-33113 is a medium severity cross-site scripting (XSS) vulnerability in Microsoft SharePoint Enterprise Server 2016. It involves improper neutralization of input during web page generation, allowing an authorized attacker to perform spoofing over a network. An official fix is available from Microsoft.
CVSS v3.1
Score 5.4medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-33113) 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, which leads to cross-site scripting (XSS). An authorized attacker could exploit this flaw to perform spoofing attacks over a network. The CVSS v3.1 base score is 5.4 (medium severity), with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality and integrity. Microsoft has released an official fix for this vulnerability.
Potential Impact
Successful exploitation could allow an authorized attacker to conduct spoofing attacks, potentially leading to limited confidentiality and integrity impacts. There is no indication of availability impact. The vulnerability requires user interaction and no privileges, making it moderately exploitable over a network.
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 advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33113 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-17T20:15:23.720Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33113","vendor":"Microsoft"}]
Threat ID: 6a284cb78dd33fbd8566406e
Added to database: 6/9/2026, 5:26:15 PM
Last enriched: 6/9/2026, 11:28:01 PM
Last updated: 6/10/2026, 6:41:43 AM
Views: 4
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