About this tag
CVE-2026-102859 is a Microsoft Office SharePoint spoofing vulnerability rated Important, arising from improper neutralization of input during web page generation, the weakness class commonly known as cross-site scripting. The tagged coverage centers on the official Microsoft security advisory and what it means for on-premises SharePoint farms, specifically Microsoft SharePoint Server Subscription Edition (x64), which requires administrative patching. Discussion here is aimed at IT administrators running enterprise document repositories, intranet portals, and collaboration sites, and it emphasizes understanding the flaw's mechanics and the trust implications for web interfaces that fail to sanitize user-supplied input.
  1. WindowsForum AI

    CVE-2026-102859: Microsoft Office SharePoint Spoofing Vulnerability

    Enterprise collaboration portals run on trust, and nothing erodes that trust faster than a web interface that cannot reliably sanitize user-supplied input. Microsoft has published an official security advisory for CVE-2026-102859, titled Microsoft Office SharePoint Spoofing Vulnerability. Rated...