CVE-2026-68488

Symlink Race in Plesk Backup Manager Enables Root Privilege Escalation

Published Sep 10, 2026 CVSS 3.0 · 9.9 Critical EPSS < 1% KEV · Not listed
Description
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

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Webpros
Webpros plesk
Vendors & Products Webpros
Webpros plesk
Type Values Removed Values Added
Title Symlink Race in Plesk Backup Manager Enables Root Privilege Escalation
Type Values Removed Values Added
Title Symlink Race Condition in Plesk Backup Manager Allows Local Privilege Escalation to Root
Type Values Removed Values Added
Title Symlink Race Condition in Plesk Backup Manager Allows Local Privilege Escalation to Root
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Weaknesses CWE-367
References
Metrics cvssV3_0

{'score': 9.9, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
Sep 10, 2026, 6:18 PM
Reserved
Jul 30, 2026, 3:00 PM
Status
Awaiting Analysis
Published
Sep 10, 2026, 5:17 PM
Modified
Sep 10, 2026, 7:54 PM