What’s Vulnerable › Vulnerabilities

CVE-2025-66431

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-03 · updated 2026-10-18
• Weakness: CWE-61

Description

WebPros Plesk before 18.0.73.5 and 18.0.74 before 18.0.74.2 on Linux allows remote authenticated users to execute arbitrary code as root via domain creation. The attacker needs "Create and manage sites" with "Domains management" and "Subdomains management."

Affected products

• Plesk: before 18.0.73.5; from 18.0.74 before 18.0.74.2 — fixed in 18.0.73.5, 18.0.74.2

How to fix

Upgrade to a fixed version: Plesk 18.0.73.5, 18.0.74.2. Check the vendor advisory for mitigations.

References

• https://docs.plesk.com/release-notes/obsidian/change-log/#plesk-18074
• https://docs.plesk.com/release-notes/obsidian/whats-new/
• https://support.plesk.com/hc/en-us/articles/36494997377687--CVE-2025-66431-Security-vulnerability-in-domain-creation-mechanism-allows-Plesk-users-to-execute-arbitrary-code-on-behalf-of-root

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