CVE-2026-45464: 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 unauthorized attacker to perform spoofing over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-45464) in Microsoft SharePoint Enterprise Server 2016 is classified as CWE-79, indicating improper neutralization of input during web page generation, commonly known as cross-site scripting (XSS). The flaw allows an attacker to inject malicious scripts that can lead to spoofing attacks over a network. The CVSS 3.1 base score is 5.4 (medium severity), reflecting 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 attacker to perform spoofing attacks by injecting malicious scripts into web pages generated by SharePoint Enterprise Server 2016. This could lead to limited confidentiality and integrity impacts, such as theft of user data or session hijacking. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45464 to remediate this vulnerability.
CVE-2026-45464: 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 unauthorized attacker to perform spoofing over a network.
CVSS v3.1
Score 5.4medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-45464) in Microsoft SharePoint Enterprise Server 2016 is classified as CWE-79, indicating improper neutralization of input during web page generation, commonly known as cross-site scripting (XSS). The flaw allows an attacker to inject malicious scripts that can lead to spoofing attacks over a network. The CVSS 3.1 base score is 5.4 (medium severity), reflecting 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 attacker to perform spoofing attacks by injecting malicious scripts into web pages generated by SharePoint Enterprise Server 2016. This could lead to limited confidentiality and integrity impacts, such as theft of user data or session hijacking. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45464 to remediate this vulnerability.
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: 06/09/2026, 17:26:49 UTC
Last enriched: 07/29/2026, 21:55:27 UTC
Last updated: 07/31/2026, 20:41:55 UTC
Views: 45
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