Arbitrary File Upload Vulnerability in ProSolution WP Client Plugin for WordPress
CVE-2026-2942

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Prosolution WP Client
Vendor
CVE Published:
8 April 2026

What is CVE-2026-2942?

The ProSolution WP Client plugin for WordPress contains a security weakness that allows attackers to upload arbitrary files due to inadequate file type validation in the 'proSol_fileUploadProcess' function. This vulnerability affects all versions up to and including 1.9.9. By exploiting this flaw, unauthorized users can upload harmful files to the server, potentially leading to remote code execution and further compromise of the website.

Affected Version(s)

ProSolution WP Client 0 <= 1.9.9

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/prosolution-wp...
https://plugins.trac.wordpress.org/changeset/3484577/pros...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nabil Irawan
.