CVE-2026-45483: 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 Project Server allows an authorized attacker to perform spoofing over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-45483) affects Microsoft SharePoint Enterprise Server 2016 (version 16.0.0). It is categorized as CWE-79, indicating improper neutralization of input during web page generation, commonly known as cross-site scripting (XSS). The flaw allows an attacker with authorized access to conduct spoofing attacks over a network by injecting malicious input that is not properly sanitized. The CVSS v3.1 base score is 4.6 (medium severity), reflecting low impact on confidentiality and integrity, no impact on availability, and requiring low privileges with user interaction. Microsoft has released an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to perform cross-site scripting attacks, potentially leading to spoofing attacks over the network. The impact includes limited confidentiality and integrity loss but no availability impact. Exploitation requires low privileges and user interaction.
Mitigation Recommendations
Microsoft has provided an official fix for this vulnerability. It is recommended to apply the security update available from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45483 to remediate this issue.
CVE-2026-45483: 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 Project Server allows an authorized attacker to perform spoofing over a network.
CVSS v3.1
Score 4.6medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-45483) affects Microsoft SharePoint Enterprise Server 2016 (version 16.0.0). It is categorized as CWE-79, indicating improper neutralization of input during web page generation, commonly known as cross-site scripting (XSS). The flaw allows an attacker with authorized access to conduct spoofing attacks over a network by injecting malicious input that is not properly sanitized. The CVSS v3.1 base score is 4.6 (medium severity), reflecting low impact on confidentiality and integrity, no impact on availability, and requiring low privileges with user interaction. Microsoft has released an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to perform cross-site scripting attacks, potentially leading to spoofing attacks over the network. The impact includes limited confidentiality and integrity loss but no availability impact. Exploitation requires low privileges and user interaction.
Mitigation Recommendations
Microsoft has provided an official fix for this vulnerability. It is recommended to apply the security update available from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45483 to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T16:07:22.617Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45483","vendor":"Microsoft"}]
Threat ID: 6a284cdc8dd33fbd85664d4e
Added to database: 06/09/2026, 17:26:52 UTC
Last enriched: 07/29/2026, 21:57:02 UTC
Last updated: 07/31/2026, 21:26:44 UTC
Views: 53
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