CVE-2026-107246
Received Received - Intake

Path Traversal in Plesk Site Import Extension

Publication date: 2026-11-10

Last updated on: 2026-11-10

Assigner: HackerOne

Description
The Plesk extension "Site Import" before 1.13.2 does not properly validate domain and session identifiers, allowing path traversal. This lets a non-owner subscription user redirect a privileged backend session into a directory they control, resulting in arbitrary code execution as root.

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Meta Information

Published
2026-11-10
Last Modified
2026-11-10
Generated
2026-11-10
AI Q&A
2026-11-10
EPSS Evaluated
N/A
NVD
CVE-2026-107246
EUVD
EUVD-2026-120631

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
WebPros Plesk extension "Site Import" From 0 (inc) to 1.13.2 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

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Executive Summary

The Plesk Site Import extension before version 1.13.2 has a path traversal vulnerability due to improper validation of domain and session identifiers. This allows a non-owner subscription user to redirect a privileged backend session into a directory they control, leading to arbitrary code execution as root.

Detection Guidance

Check the installed version of the Site Import extension in Plesk by logging into the Plesk interface and navigating to Extensions > My Extensions. If the version is 1.13.1 or earlier, the system is vulnerable.

Impact Analysis

A non-administrative Plesk user could exploit this flaw to run malicious commands on the server, compromising the entire system and all hosted subscriptions. This could result in unauthorized access, data theft, or system damage.

Compliance Impact

This vulnerability allows arbitrary code execution as root, potentially compromising the entire server and all hosted subscriptions. Such a breach could lead to unauthorized access to sensitive data, violating GDPR's data protection requirements and HIPAA's security rules for protected health information.

Mitigation Strategies

Update the Site Import extension to version 1.13.2 or later immediately. This can be done through the Plesk interface under Extensions > My Extensions.

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