CVE-2023-2437

UserPro <= 5.1.1 - Authentication Bypass to Administrator

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.

Affected

UserPro - Community and User Profile WordPress Plugin

CVSS v3.1 NVD

8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 WORDFENCE

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

EPSS

6.75% chance of exploitation in the next 30 days, 94th percentile

Nuclei

critical · CWE-287

Published

2023-11-22

Updated

2026-04-08

Proof-of-concept exploits (2)

• http://packetstormsecurity.com/files/175871/WordPress-UserPro-5.1.x-Password-Reset-Authen…
• RxRCoder/CVE-2023-24370★ · 2024-03-02

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-2437.yaml

Security advisories

• https://www.wordfence.com/threat-intel/vulnerabilities/id/b3cf9f38-c20e-40dc-a7a1-65b0c6b…
• https://codecanyon.net/item/userpro-user-profiles-with-social-login/5958681

References

• CVE Record
• NVD entry