Critical severity · published Aug 12, 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-privileged user (customer, reseller) to execute arbitrary code on behalf of…
9.3
CVSS
0.6%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PL
Plesk · WebPros
18.0.52 before 18.0.79.6; 18.0.80.0 before 18.0.80.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64639
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-64639
support.plesk.com
https://support.plesk.com/hc/en-us/articles/42521305418903-Vulnerability-CVE-2026-64639-Privilege-Escalation-via-Database-Cloning-in-Plesk
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