---
id: CVE-2026-76547
title: >-
  The User Profile Builder  WordPress plugin before 4.0.1 does not validate the
  type of data being deserialized when importing a configuration file, allowing
  high privilege users such as administrators to conduct PHP Object Injection
summary: >-
  The User Profile Builder  WordPress plugin before 4.0.1 does not validate the
  type of data being deserialized when importing a configuration file, allowing
  high privilege users such as administrators to conduct PHP Object Injection.
  The …
severity: medium
cvss: 6.6
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-502
published: '2026-08-29'
updated: '2026-08-30'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76547'
references:
  - url: 'https://wpscan.com/vulnerability/b80151f4-e910-4263-9ecc-470fb39d7583/'
    label: contact@wpscan.com
tags:
  - nvd
epss: 0.00246
epssPercentile: 0.16187
ingestedAt: '2026-08-30T07:49:07.199Z'
---

## Overview

The User Profile Builder  WordPress plugin before 4.0.1 does not validate the type of data being deserialized when importing a configuration file, allowing high privilege users such as administrators to conduct PHP Object Injection. The affected feature is a free add-on which is disabled by default, and no POP chain is present in the User Profile Builder  WordPress plugin before 4.0.1 itself, so further impact requires a suitable gadget from another installed User Profile Builder  WordPress plugin before 4.0.1 or .

## Remediation

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