WordPress security changelog
CRITICAL CVE-2023-2437 Modified

UserPro: Privilege escalation or authentication bypass

UserPro is affected by privilege escalation or authentication bypass. The vulnerable path is reachable without authentication. A successful request can grant permissions or access that the caller should not possess.

CVE / CNA score 9.8 CVSS 3.1 · security@wordfence.com
NVD score 8.1 CVSS 3.1 · nvd@nist.gov
Component
UserPro
Plugin slug
userpro
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Nov 22, 2023
Weakness
CWE-288 — Authentication Bypass Using an Alternate Path or Channel
CWE-287 — Improper Authentication

This CVE was published Nov 22, 2023 and is one of 22 known issues for this plugin.

Update, patch or deactivate.

Update UserPro to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The UserPro plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 5.1.1. This is due to insufficient verification on the user being supplied during a Facebook login through the plugin. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the email. An attacker can leverage CVE-2023-2448 and CVE-2023-2446 to get the user's email address to successfully exploit this vulnerability.

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

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

Primary and upstream sources