Critical severity · published Jul 6, 2026
CVE-2026-48614
An improper authorization vulnerability in the Plesk XML API allows an authenticated user to inject arbitrary configuration directives, resulting in arbitrary file write as root…
9.9
CVSS
0.6%
EPSS
No
On KEV
Description
An improper authorization vulnerability in the Plesk XML API allows an authenticated user to inject arbitrary configuration directives, resulting in arbitrary file write as root and full privilege escalation on the underlying server.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PL
Plesk · WebPros
before 18.0.78 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48614
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-48614
support.plesk.com
https://support.plesk.com/hc/en-us/articles/41171817973143-Vulnerability-in-Plesk-XML-API
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