{"id":44902,"date":"2025-05-27T05:51:36","date_gmt":"2025-05-27T05:51:36","guid":{"rendered":""},"modified":"2025-06-02T11:23:36","modified_gmt":"2025-06-02T17:23:36","slug":"cve-2025-39348-critical-deserialization-of-untrusted-data-vulnerability-in-themegoods-grand-restaurant-wordpress","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-39348-critical-deserialization-of-untrusted-data-vulnerability-in-themegoods-grand-restaurant-wordpress\/","title":{"rendered":"CVE-2025-39348: Critical Deserialization of Untrusted Data Vulnerability in ThemeGoods Grand Restaurant WordPress<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The recent discovery of a severe vulnerability, CVE-2025-39348, in the Grand Restaurant theme of WordPress has raised significant concerns about data security and the integrity of systems using this theme. This vulnerability allows for the deserialization of untrusted data, which can lead to object injection. The impact of this vulnerability is significant; it could potentially compromise the system or lead<\/a> to data leakage. As such, it is crucial for businesses and organizations using the Grand Restaurant WordPress theme to understand this vulnerability<\/a> and take appropriate actions to mitigate its risks.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-39348
\nSeverity: Critical with a CVSS score of 9.8
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

ThemeGoods Grand<\/a> Restaurant WordPress | Versions up to 7.0<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability exists because the ThemeGoods Grand Restaurant WordPress<\/a> theme does not properly validate user-supplied input before deserializing it. This allows an attacker to send serialized objects containing malicious data<\/a> or code, which the system then deserializes and executes. This could allow an attacker to execute arbitrary code<\/a>, modify data, or even take complete control of the affected system.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

This conceptual example demonstrates how an attacker might exploit the vulnerability. This could be done via a POST request to a vulnerable<\/a> endpoint, containing a serialized object with malicious data.<\/p>\n

POST \/vulnerable\/endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"serialized_object\": \"O:10:\\\"malicious\\\":1:{s:4:\\\"code\\\";s:32:\\\"payload_that_executes_arbitrary_code\\\";}\" }<\/code><\/pre>\n
The serialized object (`serialized_object`) contains a malicious class (`malicious`) with a property (`code`) that contains the payload to be executed when the object is deserialized<\/a>.
\nIt is worth noting that this is a simplified example. In a real-world scenario, the payload would likely be more complex and designed to exploit specific vulnerabilities in the targeted system<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The recent discovery of a severe vulnerability, CVE-2025-39348, in the Grand Restaurant theme of WordPress has raised significant concerns about data security and the integrity of systems using this theme. This vulnerability allows for the deserialization of untrusted data, which can lead to object injection. The impact of this vulnerability is significant; it could […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-44902","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t