CVE-2026-48614 Code injection in Plesk

Critical 9.9 Published Updated

Authenticated users can inject configuration directives via the XML API to write arbitrary files as root, achieving full privilege escalation on the server.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-48614?

CVE-2026-48614 is a critical code injection vulnerability in WebPros Plesk, published on 6 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-94

Which versions are affected by CVE-2026-48614?

How do I fix CVE-2026-48614?

No fix has been published for CVE-2026-48614 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-48614 being exploited?

There is no known exploitation of CVE-2026-48614 in the wild and no public exploit code.

Sources

Also known as GHSA-29pr-6qrg-q2x4.

Is CVE-2026-48614 in your software?

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