---
id: CVE-2026-66047
title: >-
  ProfilePress (wp-user-avatar) WordPress plugin before 4.17.2 contains an
  unauthenticated remote code execution vulnerability that allows
  unauthenticated attackers to install and activate arbitrary plugins by
  brute-forcing a weak 32-bit c…
summary: >-
  ProfilePress (wp-user-avatar) WordPress plugin before 4.17.2 contains an
  unauthenticated remote code execution vulnerability that allows
  unauthenticated attackers to install and activate arbitrary plugins by
  brute-forcing a weak 32-bit c…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-306
  - CWE-330
published: '2026-08-31'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:18:59.270'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-66047'
references:
  - url: 'https://profilepress.com/changelog/'
    label: disclosure@vulncheck.com
  - url: 'https://wordpress.org/plugins/wp-user-avatar/'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/profilepress-wordpress-plugin-unauthenticated-arbitrary-plugin-installation-rce
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00539
epssPercentile: 0.44338
ingestedAt: '2026-09-08T21:11:12.288Z'
---

## Overview

ProfilePress (wp-user-avatar) WordPress plugin before 4.17.2 contains an unauthenticated remote code execution vulnerability that allows unauthenticated attackers to install and activate arbitrary plugins by brute-forcing a weak 32-bit connect token via the ppress_connect_process AJAX handler. Attackers can supply a caller-controlled URL through the file request parameter to trigger silent plugin installation and activation, achieving PHP code execution as the web-server user.

## Remediation

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