CVE-2026-45481: 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-2026-45481) in Microsoft SharePoint Enterprise Server 2016 is categorized as CWE-79, indicating improper neutralization of input during web page generation, leading to cross-site scripting (XSS). An authorized attacker with limited privileges can exploit this flaw to conduct spoofing attacks over a network. The CVSS v3.1 base score is 7.3, reflecting high severity with network attack vector, low attack complexity, required privileges, and user interaction. Microsoft has released an official fix for this vulnerability.
Potential Impact
Successful exploitation allows an authorized attacker to perform spoofing attacks, potentially leading to compromise of confidentiality and integrity of data within the affected SharePoint environment. The vulnerability does not impact availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45481 to remediate this vulnerability.
CVE-2026-45481: 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 7.3high
Affected software
Microsoft
Microsoft SharePoint Enterprise Server 2016
Microsoft
Microsoft SharePoint Server 2019
Microsoft
Microsoft SharePoint Server Subscription Edition
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-45481) in Microsoft SharePoint Enterprise Server 2016 is categorized as CWE-79, indicating improper neutralization of input during web page generation, leading to cross-site scripting (XSS). An authorized attacker with limited privileges can exploit this flaw to conduct spoofing attacks over a network. The CVSS v3.1 base score is 7.3, reflecting high severity with network attack vector, low attack complexity, required privileges, and user interaction. Microsoft has released an official fix for this vulnerability.
Potential Impact
Successful exploitation allows an authorized attacker to perform spoofing attacks, potentially leading to compromise of confidentiality and integrity of data within the affected SharePoint environment. The vulnerability does not impact availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45481 to remediate this vulnerability.
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-2026-45481","vendor":"Microsoft"}]
Threat ID: 6a284cdc8dd33fbd85664d46
Added to database: 06/09/2026, 17:26:52 UTC
Last enriched: 08/14/2026, 13:36:24 UTC
Last updated: 09/14/2026, 10:01:31 UTC
Views: 67
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