CVE-2023-2449 CRITICAL

CVE-2023-2449: UserPro <= 5.1.1 - Insecure Password Reset Mechanism

Vendor N/A
Product UserPro - Community and User Profile WordPress Plugin
Weakness CWE-620 · Unverified password change
Published November 22, 2023
Last update April 8, 2026

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

The UserPro plugin for WordPress is vulnerable to unauthorized password resets in versions up to, and including 5.1.1. This is due to the plugin using native password reset functionality, with insufficient validation on the password reset function (userpro_process_form). The function uses the plaintext value of a password reset key instead of a hashed value which means it can easily be retrieved and subsequently used. An attacker can leverage CVE-2023-2448 and CVE-2023-2446, or another vulnerability like SQL Injection in another plugin or theme installed on the site to successfully exploit this vulnerability.

Key dates

02Disclosure timeline

November 22, 2023 CVE published
April 8, 2026 Record updated