Cloud Vulnerability DB
A community-led vulnerabilities database
Vulnerability DatabaseCVE-2025-4334
CVE-2025-4334:
WordPress vulnerability analysis and mitigation
Overview
The Simple User Registration plugin for WordPress contains a critical privilege escalation vulnerability (CVE-2025-4334) affecting all versions up to and including 6.3. The vulnerability was discovered and disclosed on June 25, 2025. This security flaw impacts the user registration functionality of the WordPress plugin (NVD).
Technical details
The vulnerability stems from insufficient restrictions on user meta values that can be supplied during the registration process. The issue is tracked as CWE-269 (Improper Privilege Management) and has received a CVSS v3.1 base score of 9.8 (CRITICAL), with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. The vulnerable code is located in the registration handling functionality of the plugin (WordPress Plugin).
Impact
The vulnerability allows unauthenticated attackers to register on WordPress sites with administrator privileges. This level of access grants complete control over the WordPress installation, including the ability to modify site content, install/remove plugins and themes, manage users, and potentially execute arbitrary code on the server (NVD).
Mitigation and workarounds
Site administrators running the Simple User Registration plugin should immediately update to a version newer than 6.3 when available. Until a patch is released, it is recommended to disable the plugin or implement additional security controls to restrict user registration functionality (NVD).
Additional resources
Source: This report was generated using AI
Free Vulnerability Assessment
Benchmark your Cloud Security Posture
Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.
Additional Wiz resources
Get a personalized demo
Ready to see Wiz in action?
"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management