CVE-2025-55076: Plugin-Alliance Installation Manager

Medium severity, CVSS 6.2. EPSS: 0.2% chance of exploitation in the next 30 days.

A local privilege escalation vulnerability exists in the InstallationHelper service included with Plugin Alliance Installation Manager v1.4.0 for macOS. The service accepts unauthenticated XPC connections and executes input via system(), which may allow a local user to execute arbitrary commands with root privileges.

Affected products

Published 2025-12-03. Last modified 2026-06-17.