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CVE-2025-39352: Unpatched Authorization Flaw in ThemeGoods Grand Restaurant WordPress

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Overview

CVE-2025-39352 refers to a critical Missing Authorization vulnerability that exists in the popular WordPress theme, ThemeGoods Grand Restaurant. This vulnerability arises due to the theme’s incorrectly configured access control security levels, which can potentially lead to unauthorized system access or sensitive data leakage. Given the popularity of WordPress as a platform and the widespread usage of the ThemeGoods Grand Restaurant theme, this vulnerability poses a significant risk to numerous website owners and their users. It is therefore essential to understand the workings of this vulnerability and to promptly implement the recommended mitigation strategies.

Vulnerability Summary

CVE ID: CVE-2025-39352
Severity: High (8.2)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

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Product | Affected Versions

ThemeGoods Grand Restaurant WordPress | Up to 7.0

How the Exploit Works

The vulnerability resides in the programming logic of the ThemeGoods Grand Restaurant WordPress theme that handles access control. Specifically, the theme does not correctly validate user permissions, allowing an attacker to escalate their privileges or perform actions that they should not have access to. By exploiting this flaw, an attacker can potentially gain unauthorized access to the system, modify its settings, or retrieve sensitive data.

Conceptual Example Code

Here is a hypothetical example of how the vulnerability might be exploited. An attacker might send a specially crafted HTTP request to the affected WordPress site, bypassing access controls and executing unauthorized actions.

POST /wp-admin/admin-ajax.php HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"action": "grand_restaurant_theme_admin_option_save",
"theme_options_data": "{...malicious settings...}"
}

In this example, the action parameter refers to a functionality within the theme that is vulnerable due to the incorrect access control. The “theme_options_data” parameter then carries the attacker’s desired settings or commands.

Mitigation

Users of the affected ThemeGoods Grand Restaurant WordPress theme are urged to apply the vendor-released patch immediately. In the interim, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation against potential attacks. Regularly monitoring system logs for any unusual activities can also help identify and thwart potential attacks in a timely manner.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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