Overview
The cybersecurity world is abuzz with the discovery of a new vulnerability in WeiPHP v5.0 and before, tagged as CVE-2025-55849. WeiPHP is a popular open-source framework used by programmers to build applications. However, this vulnerability may allow an attacker to manipulate SQL queries, leading to unauthorized access to sensitive data, and potential system compromise. Given the widespread use of WeiPHP, the impact of this vulnerability is potentially far-reaching, affecting numerous applications and by extension, organizations and their users.
Vulnerability Summary
CVE ID: CVE-2025-55849
Severity: High (CVSS:8.4)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Unauthorized access to sensitive data, potential system compromise
Affected Products
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Product | Affected Versions
WeiPHP | v5.0 and before
How the Exploit Works
The vulnerability stems from insufficient sanitization of user-supplied inputs in the ‘SucaiController.class.php’ file. An attacker can exploit this by injecting malicious SQL code into the application’s query string. This results in the application unknowingly running the malicious SQL query, which can lead to unauthorized access to sensitive data, modification of data, or even system compromise.
Conceptual Example Code
Here’s a conceptual example of how an attacker might exploit the vulnerability. Suppose the application accepts a parameter ‘template_id’ in the URL to fetch some data:
GET /SucaiController.class.php?template_id=100 HTTP/1.1
Host: vulnerable.example.comAn attacker could substitute ‘100’ with a crafted SQL statement:
GET /SucaiController.class.php?template_id=100;DROP%20TABLE%20users; HTTP/1.1
Host: vulnerable.example.comThis could lead to the ‘users’ table being dropped from the database if the application directly includes the ‘template_id’ parameter in a SQL query without sanitizing it first.
Mitigation Steps
To mitigate this vulnerability, users are advised to apply the patch provided by the vendor as soon as it’s available. In the interim, a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can be used to detect and block SQL Injection attacks. Additionally, developers should always sanitize user inputs before including them in SQL queries to prevent such injection attacks.
