CVE-2026-32201: SharePoint Spoofing Vulnerability Enabling Unauthenticated Impersonation
Over 1,300 Microsoft SharePoint servers exposed online remain unpatched against a spoofing vulnerability that was exploited as a zero-day. The vulnerability in question, CVE-2026-32201, is a spoofing vulnerability rooted in improper input validation that requires no login, no user interaction, and no special conditions to exploit. The vulnerability allows unauthenticated attackers to influence how content is rendered, making attacker-controlled data appear as legitimate output.