CVE-2026-62826: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Microsoft Microsoft SharePoint Enterprise Server 2016
CVE-2026-62826 is a cross-site scripting (XSS) vulnerability in Microsoft SharePoint Enterprise Server 2016 version 16.0.0. It involves improper neutralization of input during web page generation, allowing an authorized attacker to perform spoofing attacks over a network. The vulnerability has a medium severity with a CVSS score of 4.6. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-62826) affects Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) and is classified as CWE-79, indicating improper neutralization of input during web page generation leading to cross-site scripting (XSS). An authorized attacker can exploit this flaw to conduct spoofing attacks over a network. The vulnerability has been assigned a CVSS v3.1 base score of 4.6 (medium severity) with network attack vector, low attack complexity, and requiring privileges and user interaction. Microsoft has published an official fix for this issue.
Potential Impact
Successful exploitation allows an authorized attacker to perform spoofing attacks via cross-site scripting, potentially leading to limited confidentiality and integrity impacts. There is no impact on availability. No known exploits are reported in the wild at this time.
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-2026-62826 to remediate this vulnerability.
CVE-2026-62826: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Microsoft Microsoft SharePoint Enterprise Server 2016
Description
CVE-2026-62826 is a cross-site scripting (XSS) vulnerability in Microsoft SharePoint Enterprise Server 2016 version 16.0.0. It involves improper neutralization of input during web page generation, allowing an authorized attacker to perform spoofing attacks over a network. The vulnerability has a medium severity with a CVSS score of 4.6. An official fix is available from Microsoft.
CVSS v3.1
Score 4.6medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-62826) affects Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) and is classified as CWE-79, indicating improper neutralization of input during web page generation leading to cross-site scripting (XSS). An authorized attacker can exploit this flaw to conduct spoofing attacks over a network. The vulnerability has been assigned a CVSS v3.1 base score of 4.6 (medium severity) with network attack vector, low attack complexity, and requiring privileges and user interaction. Microsoft has published an official fix for this issue.
Potential Impact
Successful exploitation allows an authorized attacker to perform spoofing attacks via cross-site scripting, potentially leading to limited confidentiality and integrity impacts. There is no impact on availability. No known exploits are reported in the wild at this time.
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-2026-62826 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:10:38.082Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62826","vendor":"Microsoft"}]
Threat ID: 6a59dfe768715ace439a90ee
Added to database: 07/17/2026, 07:55:19 UTC
Last enriched: 07/17/2026, 08:02:40 UTC
Last updated: 07/17/2026, 08:17:35 UTC
Views: 4
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