Remote Code Execution Vulnerability in Plesk by WebPros
CVE-2025-66431

7.8HIGH

Key Information:

Vendor

Plesk

Status
Plesk
Vendor
CVE Published:
3 December 2025

What is CVE-2025-66431?

A security vulnerability in Plesk allows remote authenticated users, given specific permissions related to site and domain management, to execute arbitrary code as the root user. This issue arises in versions prior to 18.0.73.5 and in 18.0.74 versions before 18.0.74.2. Attackers exploiting this flaw can perform unauthorized actions, compromising the security and integrity of the host system.

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Affected Version(s)

Plesk 0 < 18.0.73.5

Plesk 18.0.74 < 18.0.74.2

References

https://docs.plesk.com/release-notes/obsidian/whats-new/
https://docs.plesk.com/release-notes/obsidian/change-log/...
https://support.plesk.com/hc/en-us/articles/3649499737768...

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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