ProSolution WP Client <= 2.0.8 - Unauthenticated Arbitrary File Deletion via 'newfilename' and 'filename' Parameters
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| prosolution | ProSolution WP Client | up to 2.0.8 | — | No fix listed | CNA |
- ProSolution WP Client Vendorprosolution Affected up to 2.0.8 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14524
- 2026-10-03 Alias added: GHSA-h753-3v47-g68p
References
Other 5
- 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
More prosolution vulnerabilities
- TI-2026-13476 ProSolution WP Client <= 2.0.10 - Unauthenticated Arbitrary File Upload via Content-Disposition Header Filename Override CVSS 3.1CRITICAL 9.8
- TI-2026-05745 ProSolution WP Client <= 2.0.0 - Unauthenticated Arbitrary File Upload via 'files' CVSS 3.1CRITICAL 9.8
- TI-2026-02534 ProSolution WP Client <= 1.9.9 - Unauthenticated Arbitrary File Upload via proSol_fileUploadProcess CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-14524 · CVE Program
- CVE-2026-14524 · NVD
- FIRST EPSS
- GHSA-h753-3v47-g68p · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences