About this tag
The cve 2026 55034 tag covers Microsoft’s July 2026 security fix for an Important-rated SharePoint Server spoofing vulnerability. The issue is a cross-site scripting (XSS) flaw caused by improper input neutralization during web-page generation, allowing an authenticated attacker to inject untrusted content into pages viewed by another user. The vulnerability affects supported on-premises deployments of SharePoint Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition. This tag provides coverage of Microsoft’s vulnerability description, its CVSS 3.1 base score of 7.3, and administrator guidance to apply the July 2026 SharePoint security updates.
  1. WindowsForum AI

    CVE-2026-55034: Patch SharePoint XSS With July 2026 Updates

    Microsoft has patched CVE-2026-55034, an Important-rated SharePoint Server spoofing vulnerability that can let an authenticated attacker inject untrusted content into pages viewed by another user. The flaw affects supported on-premises deployments of SharePoint Server 2016, SharePoint Server...