Is CVE-2026-64637 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-64637?

CVE-2026-64637 has a CVSS v3 severity of CRITICAL (9.9).

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CVE-2026-64637

Description

Improper privilege management in the XML-RPC API of Plesk before 18.0.80, allows an authenticated reseller to obtain an administrative session for the root user account.