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cve 2026 55021

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    CVE-2026-55021: Fix SharePoint XSS With July 2026 Updates

    Microsoft has fixed CVE-2026-55021, an Important-rated SharePoint Server spoofing vulnerability that allows an authenticated attacker to inject malicious content into web pages and potentially compromise data viewed or submitted by another user. The flaw affects supported on-premises releases of...
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    • cve 2026 55021 microsoft patches server administration sharepoint security
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