CVE-2026-67397: CWE-22 Path Traversal in WebPros Plesk
Description
Path traversal in Plesk 18.0.79.9 and earlier and 18.0.80 through 18.0.80.5 allows local users to execute arbitrary code as root.
CVSS v4.0
Score 8.5high
Affected software
WebPros
Plesk
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-67397 is a path traversal vulnerability in WebPros Plesk that affects version 18.0.80 and earlier, including 18.0.80 through 18.0.80.5. The flaw enables local users to execute arbitrary code as root, posing a significant security risk. The CVSS 4.0 vector indicates low attack complexity and privileges required, with no user interaction needed, and high impact on confidentiality, integrity, and availability. The vulnerability is categorized under CWE-22 (Path Traversal). No vendor advisory or patch is currently available, and no known exploits are reported in the wild.
Potential Impact
Local users can exploit this vulnerability to execute arbitrary code with root privileges on affected Plesk installations, potentially leading to full system compromise. The high CVSS score reflects the critical nature of the impact on system confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict local user access and monitor for suspicious activity related to path traversal attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hackerone
- Date Reserved
- 2026-07-29T15:00:02.293Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9a0bccacd9273b49a7b13a
Added to database: 09/04/2026, 00:07:40 UTC
Last enriched: 09/07/2026, 11:53:08 UTC
Last updated: 10/18/2026, 18:48:22 UTC
Views: 134
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