Profile Builder Pro <= 3.14.5 - Unauthenticated PHP Object Injection

8.1
Deserialization of Untrusted Data
CVE CVE-2026-7647
CVSS 8.1 (High)
Publicly Published May 1, 2026
Last Updated May 2, 2026
Researcher 0xbro

Description

The Profile Builder Pro plugin for WordPress is vulnerable to PHP Object Injection in all versions up to and including 3.14.5. This is due to the use of PHP's maybe_unserialize() function on the attacker-controlled 'args' POST parameter within the wppb_request_users_pins_action_callback() AJAX handler, which lacked any nonce verification, type checking, or input validation before deserialization. Because the handler was registered with both wp_ajax_ and wp_ajax_nopriv_ hooks, it was reachable by completely unauthenticated users. This makes it possible for unauthenticated attackers to inject arbitrary PHP objects into application memory.

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Vulnerability Details for Profile Builder Pro

Software Type Plugin
Software Slug profile-builder-pro
Patched? Yes
Remediation Update to version 3.14.6, or a newer patched version
Affected Version
  • <= 3.14.5
Patched Version
  • 3.14.6

Recent vulnerabilities in Profile Builder Pro

# Title CVE ID CVSS Researchers Date
1 Profile Builder Pro <= 3.15.0 - Unauthenticated Stored Cross-Site Scripting CVE-2026-42385 7.2 João Pedro Soares de Alcântara April 27, 2026
2 Profile Builder Pro < 3.14.0 - Unauthenticated SQL Injection CVE-2026-27413 7.5 0xd4rk5id3 February 23, 2026
3 Profile Builder Pro <= 3.10.0 - Reflected Cross-Site Scripting CVE-2024-22142 6.1 Dave Jong January 10, 2024
4 Profile Builder Pro <= 3.10.0 - Authenticated (Subscriber+) Time-Based One-Time Password Sensitive Information Exposure CVE-2024-22141 6.5 Dave Jong January 10, 2024
5 Profile Builder Pro <= 3.10.0 - Cross-Site Request Forgery CVE-2024-22140 8.8 Dave Jong January 10, 2024
6 Profile Builder/Profile Builder Pro <= 3.3.2 - Authenticated Blind SQL Injection 8.8 Lenon Leite December 4, 2020
7 Profile Builder <= 3.1.0 - Privilege Escalation 9.8 Mikey Veenstra February 13, 2020

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