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CVE-2026-44962

Critical

Description

Plesk contains an XPath injection vulnerability in the APS Application Catalog search functionality, where user-supplied input is interpolated into XPath queries without proper sanitization. This allows an authenticated, low-privileged user to execute arbitrary operating system commands on the server, resulting in local privilege escalation.

SeverityCritical
CVSS9.9
Exploit probability—
ProductPlesk
PublishedMay 29, 2026
First seenMay 29, 2026
Weakness typeCWE-643CWE-643

How to fix

Update
  • WebPros Plesk18.0.75.1, 18.0.76.2 or later

Affected products

ProductAffected versionsFixed in
WebPros Pleskv < 18.0.75.1, v < 18.0.76.218.0.75.1, 18.0.76.2

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