CVE-2026-64639

CRITICAL CVSS 4.0: 9.3 EPSS 0.33%
Updated Aug 14, 2026
Incorrect
Parameter Value
CVSS 9.3 (CRITICAL)
Affected Versions before 18.0.79.6
Type CWE-266 (Incorrect Privilege Assignment)
Vendor Incorrect
Public PoC No

Incorrect database cloning process in Plesk from 18.0.52 before 18.0.79.6 and 18.0.80.2 allows a low-privileged user (customer, reseller) to execute arbitrary code on behalf of the database server administrator.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0