Privilege Escalation Vulnerability in Plesk by Plesk International
CVE-2026-68488

9.9CRITICAL

Key Information:

Vendor

Webpros

Status
Vendor
CVE Published:
10 September 2026

What is CVE-2026-68488?

A race condition in the Plesk Backup Manager can lead to an insecure symlink following, enabling local privilege escalation. This vulnerability allows an attacker to gain unauthorized root access by taking ownership of arbitrary files or directories. Proper safeguards against race conditions are essential to securing the application and preventing unauthorized privilege escalation.

Affected Version(s)

Plesk 0 <= 18.0.80.6

Plesk 0 <= 18.0.79.10

References

CVSS V3.0

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.