RCE in Webpros Plesk

CVE-2026-67394

A critical local privilege escalation via OS command injection vulnerability has been discovered in Plesk for Linux, affecting all versions from 18.0.34 before 18.0.79.9 and 18.0.80.5. The vulnerability allows a customer or reseller with shell access (or allowed to change their own shell access) to elevate privileges to the root account on the hosting server.

Vulnerability class: Command Injection (OS Command Injection)

Affected products

Weakness classification (CWE)

References