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CVE-2026-55052 Microsoft SharePoint Elevation of Privilege Vulnerability

This is a missing authorization vulnerability (CWE-862) in Microsoft SharePoint that allows an authenticated attacker (PR:L) to elevate privileges remotely (AV:N) with low attack complexity (AC:L). It has been assigned a CVSS v3.1 base score of 8.8 (High). The article confirms a security update is available as an official fix, but it does not specify the exact affected version ranges or the specific KB/patch version number required for remediation.
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