Is CVE-2026-19853 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-19853?

CVE-2026-19853 has a CVSS v3 severity of MEDIUM (5.3).

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CVE-2026-19853

Description

NewSiteServer (NSS) developed by CyberTutor has a Missing Authentication vulnerability. Unauthenticated remote attackers can exploit a specific functionality to send emails to anyone on behalf of the school.