CVE-2026-45464: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Microsoft Microsoft SharePoint Enterprise Server 2016
CVE-2026-45464 is a 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. The vulnerability has a medium severity with a CVSS score of 5. 4. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-45464) in Microsoft SharePoint Enterprise Server 2016 is due to improper neutralization of input during web page generation, classified as CWE-79 (Cross-site Scripting). An authorized attacker can exploit this flaw to perform spoofing attacks over a network. The vulnerability affects version 16.0.0 of the product. Microsoft has released an official fix to address this issue.
Potential Impact
Successful exploitation allows an authorized attacker to conduct spoofing attacks, potentially misleading users or systems by injecting malicious scripts into web pages generated by SharePoint. The impact includes limited confidentiality and integrity loss but no availability impact. The CVSS vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, and confirmed remediation.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators of Microsoft SharePoint Enterprise Server 2016 should apply the vendor-provided patch as soon as possible to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45464 for detailed update instructions.
CVE-2026-45464: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Microsoft Microsoft SharePoint Enterprise Server 2016
Description
CVE-2026-45464 is a 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. The vulnerability has a medium severity with a CVSS score of 5. 4. 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-2026-45464) in Microsoft SharePoint Enterprise Server 2016 is due to improper neutralization of input during web page generation, classified as CWE-79 (Cross-site Scripting). An authorized attacker can exploit this flaw to perform spoofing attacks over a network. The vulnerability affects version 16.0.0 of the product. Microsoft has released an official fix to address this issue.
Potential Impact
Successful exploitation allows an authorized attacker to conduct spoofing attacks, potentially misleading users or systems by injecting malicious scripts into web pages generated by SharePoint. The impact includes limited confidentiality and integrity loss but no availability impact. The CVSS vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, and confirmed remediation.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators of Microsoft SharePoint Enterprise Server 2016 should apply the vendor-provided patch as soon as possible to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45464 for detailed update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T16:06:43.097Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45464","vendor":"Microsoft"}]
Threat ID: 6a284cd98dd33fbd85664c63
Added to database: 6/9/2026, 5:26:49 PM
Last enriched: 6/9/2026, 10:27:26 PM
Last updated: 6/10/2026, 6:45:49 AM
Views: 4
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