Vulnerability · Published Aug 16, 2026 · Assigned by Wordfence
CVE-2026-14524ProSolution WP Client <= 2.0.8 - Unauthenticated Arbitrary File Deletion via 'newfilename' and 'filename' Parameters
Critical 9.1
In plain English
A critical-severity path traversal in ProSolution WP Client from prosolution. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities).
Official description
The ProSolution WP Client plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the proSol_fileDeleteProcess function in all versions up to, and including, 2.0.8. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). An attacker must first call the proSol_fileUploadModalProcess handler to poison their own session with a path-traversal key, then call proSol_fileDeleteProcess with that key as the filename parameter; both steps require only the publicly exposed frontend nonce.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| prosolution | ProSolution WP Client | 0 – through 2.0.8 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4e9698f0-b228-4f4e-838b-c0c0a193d675?source=cve
- https://plugins.trac.wordpress.org/browser/prosolution-wp-client/tags/2.0.3/public/class-prosolwpclient-public.php#L1135
- https://plugins.trac.wordpress.org/browser/prosolution-wp-client/tags/2.0.3/public/class-prosolwpclient-public.php#L1256
- https://plugins.trac.wordpress.org/browser/prosolution-wp-client/tags/2.0.3/includes/class-prosolwpclient.php#L260
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3634993%40prosolution-wp-client&new=3634993%40prosolution-wp-client