CVE-2026-68488: CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition in WebPros Plesk
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.
AI Analysis
Technical Summary
This vulnerability in Plesk arises from a TOCTOU race condition that leads to insecure symlink following. An attacker with local access can exploit this timing issue to gain root privileges by arbitrarily taking ownership of files or directories. The CVSS 3.0 score is 9.9, reflecting its critical impact on confidentiality, integrity, and availability. No affected versions or patch information are provided in the available data.
Potential Impact
Successful exploitation results in local privilege escalation to root, compromising system confidentiality, integrity, and availability. This could allow an attacker to fully control the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict local access to trusted users only to reduce risk.
CVE-2026-68488: CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition in WebPros Plesk
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.
CVSS v3.0
Score 9.9critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Plesk arises from a TOCTOU race condition that leads to insecure symlink following. An attacker with local access can exploit this timing issue to gain root privileges by arbitrarily taking ownership of files or directories. The CVSS 3.0 score is 9.9, reflecting its critical impact on confidentiality, integrity, and availability. No affected versions or patch information are provided in the available data.
Potential Impact
Successful exploitation results in local privilege escalation to root, compromising system confidentiality, integrity, and availability. This could allow an attacker to fully control the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict local access to trusted users only to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hackerone
- Date Reserved
- 2026-07-30T15:00:00.609Z
- Cvss Version
- 3.0
- State
- PUBLISHED
Threat ID: 6aa2dccdf76d26f025573a86
Added to database: 09/10/2026, 16:37:33 UTC
Last enriched: 09/10/2026, 16:51:23 UTC
Last updated: 09/10/2026, 17:15:36 UTC
Views: 4
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