---
id: CVE-2026-68488
title: >-
  A Time-of-check Time-of-use (TOCTOU) race condition leading to insecure
  symlink following in Plesk causes local privilege escalation to root via
  arbitrary file/directory ownership takeover.
summary: >-
  A Time-of-check Time-of-use (TOCTOU) race condition leading to insecure
  symlink following in Plesk causes local privilege escalation to root via
  arbitrary file/directory ownership takeover.
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-367
vendor: WebPros
product: Plesk
affected:
  - Plesk <= 18.0.80.6
  - Plesk <= 18.0.79.10
published: '2026-09-10'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T19:54:25.810'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-68488'
references:
  - url: >-
      https://support.plesk.com/hc/en-us/articles/43248932867351-Vulnerability-in-Plesk-s-Backup-Manager-symlink-race-during-restore-allows-root-privilege-escalation
    label: support@hackerone.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-10T18:18:44.361511Z'
ingestedAt: '2026-09-12T20:02:50.482Z'
epss: 0.00228
epssPercentile: 0.13826
---

## Overview

A Time-of-check Time-of-use (TOCTOU) race condition leading to insecure symlink following in Plesk causes local privilege escalation to root via arbitrary file/directory ownership takeover.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.