UserPro <= 5.1.1 — Authentication Bypass to Administrator
CVE-2023-2437Published · Updated Action summary
Affected: ≤5.1.1Update to 5.1.2 or newer
All remediation steps- Severity
- Critical9.8
- CVSS
- 9.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
UserPro - Community and User Profile WordPress Plugin userpro
- Affected≤ 5.1.1
- Patched in5.1.2
Update to 5.1.2 or newer.
You are affected if you run ≤ 5.1.1. Version 5.1.2 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under UserPro - Community and User Profile WordPress Plugin.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 5.1.2, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch UserPro - Community and User Profile WordPress Plugin to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to István Márton.
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in UserPro - Community and User Profile WordPress Plugin
All 26| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.3 | Community and User Profile WordPress Plugin < 5.1.11 - Cross-Site Request Forgery <5.1.11Update to 5.1.11 | CVE-2025-53444 | |
| Medium5.3 | Missing Authorization ≤5.1.9No patch available | CVE-2025-68608 | |
| Medium5.9 | Community and User Profile WordPress Plugin <= 5.1.10 - Unauthenticated Arbitrary File Read ≤5.1.10No patch available | CVE-2025-4187 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤5.1.9No patch available | CVE-2024-56210 | |
| Medium4.3 | Missing Authorization ≤5.1.9No patch available | CVE-2024-56211 |
- Medium4.3Community and User Profile WordPress Plugin < 5.1.11 - Cross-Site Request Forgery
<5.1.11Update to 5.1.11
- Medium5.3Missing Authorization
≤5.1.9No patch available
- Medium5.9Community and User Profile WordPress Plugin <= 5.1.10 - Unauthenticated Arbitrary File Read
≤5.1.10No patch available
- Medium6.1Reflected Cross-Site Scripting
≤5.1.9No patch available
- Medium4.3Missing Authorization
≤5.1.9No patch available
Timeline
CVE published
Severity critical, CVSS 9.8
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.