FastDup Plugin up to 2.7 on WordPress REST API Endpoint directory-tree dir_path path traversal

Summaryinfo

A vulnerability was found in FastDup Plugin up to 2.7 on WordPress and classified as critical. Affected by this issue is some unknown functionality of the file njt-fastdup/v1/template/directory-tree of the component REST API Endpoint. Such manipulation of the argument dir_path leads to path traversal. This vulnerability is referenced as CVE-2026-0604. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in FastDup Plugin up to 2.7 on WordPress. It has been rated as critical. Affected by this issue is an unknown code of the file njt-fastdup/v1/template/directory-tree of the component REST API Endpoint. The manipulation of the argument dir_path with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality. CVE summarizes:

The FastDup – Fastest WordPress Migration & Duplicator plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 2.7 via the 'dir_path' parameter in the 'njt-fastdup/v1/template/directory-tree' REST API endpoint. This makes it possible for authenticated attackers, with Contributor-level access and above, to read the contents of arbitrary directories on the server, which can contain sensitive information.

The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-0604. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/06/2026). The MITRE ATT&CK project declares the attack technique as T1006.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Name

• FastDup Plugin

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7

CPE 2.3info

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• 🔒
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CPE 2.2info

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