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CVE-2025-50692: Critical Code Execution Vulnerability in FoxCMS v1.2.5

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Overview

In the realm of cybersecurity, vulnerabilities are an unfortunate but consistent occurrence. This blog post will detail the specifics of the critical vulnerability assigned CVE-2025-50692, which affects FoxCMS versions up to and including v1.2.5. This vulnerability is of particular concern because it allows for remote code execution in the “admin/template_file/editFile.html” file, presenting a significant risk to systems running the affected software. This could potentially lead to a system compromise and data leakage, a nightmare scenario for any organization.

Vulnerability Summary

CVE ID: CVE-2025-50692
Severity: Critical (CVSS: 9.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

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Product | Affected Versions

FoxCMS | <=v1.2.5 How the Exploit Works

The vulnerability allows an attacker to execute arbitrary code on the server due to insufficient sanitization of user input in the “admin/template_file/editFile.html” file. An attacker could send a specially crafted request containing malicious code to this file. If successful, the server would execute the code, potentially leading to unauthorized access, system compromise, or data leakage.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited. This is a sample HTTP POST request containing a malicious payload:

POST /admin/template_file/editFile.html HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "<script>malicious code here</script>" }

In this example, the “malicious_payload” field contains a script that could execute arbitrary code on the server.

Mitigation Guidance

If you are using FoxCMS v1.2.5 or earlier, it is highly recommended to apply the vendor patch as soon as possible. If a patch cannot be applied immediately, consider using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. These tools can help detect and block malicious traffic that may exploit this vulnerability. However, these are only temporary solutions, and patching the software should remain a priority to ensure your systems are secure.
In cybersecurity, staying informed and acting promptly are key to minimizing potential harm. Stay safe, stay secure!

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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