Auth bypass in Userproplugin Userpro
CVE-2023-2437
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.
EPSS: 0.068 (93.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Userproplugin Userpro
- N/a Userpro - Community And User Profile Wordpress Plugin — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Product)
- af854a3a-2127-422b-91ae-364da2661108 (Exploit, Third Party Advisory, VDB Entry)
Frequently asked questions
- What is CVE-2023-2437?
- CVE-2023-2437 is a critical-severity vulnerability in Userproplugin Userpro, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2023-11-22.
- How severe is CVE-2023-2437?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-2437 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.