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Vulnerability record · CVE-2026-64639 · published 12 August 2026

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-privilege…

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.

9.3 CVSS 4.0 Critical EPSS 0.55% · top 56.1% CWE-266 · CWE-266 Awaiting Analysis
9.3CVSS 4.0 base score
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
3 Sep 2026Last modified by NVD

Description

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.

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:

References

LinkTags
https://support.plesk.com/hc/en-us/articles/42521305418903-Vulnerability-CVE-2026-64639-Privilege-Escalation-via-Databas

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2026-48172LiteSpeed cPanel Plugin Redis Feature Privilege EscalationThe LiteSpeed User-End cPanel Plugin before 2.4.5 mishandles Redis enable/disable functionality, allowing privilege escalation that may reach root. I…KEVEPSS 1.0%analysed

Source: NIST National Vulnerability Database (record CVE-2026-64639), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.