CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Lifecycle Timeline
4Description
Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Analysis
Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Technical Context
An authentication bypass vulnerability allows attackers to circumvent login mechanisms and gain unauthorized access without valid credentials. This vulnerability is classified as Improper Authentication (CWE-287).
Affected Products
Affected products: Microsoft Sharepoint Enterprise Server 2016, Microsoft Sharepoint Server
Remediation
Implement robust authentication mechanisms. Use multi-factor authentication. Review authentication logic for bypass conditions. Remove default credentials.
Priority Score
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External POC / Exploit Code
Leaving vuln.today
EUVD-2025-20552