Critical SEVERITY — Vulnerability

CVE-2026-64639 — 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 (cu

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.

Platform
Plesk
CVE Record
CVE-2026-64639
CVSS Score
9.3/10
Published
12 August 2026
Views
25
Primary source: Review the official advisory at nvd.nist.gov Go to Source

Summary

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.

Assessment

  • CVE: CVE-2026-64639
  • CVSS base score: 9.3
  • Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  • Source: NVD record

References

Action

  • Verify affected systems against your inventory
  • Apply the vendor patch during a maintenance window
  • Restrict access at the network layer until patched

Plesk — Related Advisories

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