---
id: CVE-2026-2942
title: >-
  The ProSolution WP Client plugin for WordPress is vulnerable to arbitrary file
  uploads due to missing file type validation in the 'proSol_fileUploadProcess'
  function in all versions up to, and including, 1.9.9
summary: >-
  The ProSolution WP Client plugin for WordPress is vulnerable to arbitrary file
  uploads due to missing file type validation in the 'proSol_fileUploadProcess'
  function in all versions up to, and including, 1.9.9. This makes it possible
  for…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-434
published: '2026-04-08'
updated: '2026-07-25'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-2942'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/prosolution-wp-client/trunk/public/class-prosolwpclient-public.php?rev=3331282#L993
    label: security@wordfence.com
  - url: 'https://plugins.trac.wordpress.org/changeset/3484577/prosolution-wp-client'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/3852aef6-42e7-4b71-a1ba-dd41284fd07b?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - exploit-available
epss: 0.01067
epssPercentile: 0.63325
ingestedAt: '2026-07-26T10:11:58.441Z'
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/xxconi/CVE-2026-2942'
  checkedAt: '2026-09-26T09:05:41.542Z'
exploitAvailable: true
---

## Overview

The ProSolution WP Client plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'proSol_fileUploadProcess' function in all versions up to, and including, 1.9.9. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.