Description
Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
CISA Known Exploited Vulnerability
Date added 2025-07-22 | Due date 2025-07-23
Known Ransomware Campaign(s)
Disconnect public-facing versions of SharePoint Server that have reached their end-of-life (EOL) or end-of-service (EOS) to include SharePoint Server 2013 and earlier versions. For supported versions, please follow the mitigations according to CISA (URL listed below in Notes) and vendor instructions (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.
Problem types
CWE-287: Improper Authentication
Product status
References
www.microsoft.com/...on-premises-sharepoint-vulnerabilities/
www.cisa.gov/...erabilities-catalog?field_cve=CVE-2025-49706
msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49706 (Microsoft SharePoint Server Spoofing Vulnerability)