Overview
The cybersecurity world has recently been alerted to a new vulnerability, CVE-2025-6934, that affects the Opal Estate Pro – Property Management and Submission plugin for WordPress. This plugin is widely used by the FullHouse – Real Estate Responsive WordPress Theme. The vulnerability can lead to a privilege escalation issue due to a lack of role restriction during registration in the ‘on_regiser_user’ function. This vulnerability is particularly concerning as it allows unauthenticated attackers to arbitrarily choose their role during registration, including the role of Administrator.
This exploit could potentially allow malicious actors to gain complete control over a website, with the ability to alter content, steal data, or even bring the site down entirely. The severity of this issue emphasizes the need to apply patches or other mitigations as soon as possible.
Vulnerability Summary
CVE ID: CVE-2025-6934
Severity: Critical; CVSS Score: 9.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Privilege escalation, potential system compromise, and data leakage
Affected Products
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Product | Affected Versions
Opal Estate Pro – Property Management and Submission plugin for WordPress | Up to and including 1.7.5
FullHouse – Real Estate Responsive WordPress Theme | All versions that use vulnerable plugin version
How the Exploit Works
The exploit takes advantage of a lack of role restriction during the user registration process. When a new user registers, the ‘on_regiser_user’ function in the Opal Estate Pro plugin does not properly restrict or verify the user role that is selected. This allows an unauthenticated user to choose any role, including the Administrator role, providing them with full control and access rights within the WordPress site.
Conceptual Example Code
The following is a conceptual example of how an attacker might exploit this vulnerability during the registration process. In this hypothetical HTTP request, the attacker sets the ‘role’ parameter to ‘Administrator’:
POST /wp-login.php?action=register HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
username=attacker&email=attacker@example.com&role=Administrator&password=attacker_passwordThrough this simple exploit, the attacker could gain Administrator-level access to the site, posing a significant security risk. It is therefore urgent for any users of the affected versions of the plugin or theme to apply the vendor patch or use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation.