Overview
The cybersecurity landscape is constantly evolving, with new threats emerging each day. One such threat that has recently been identified is the CVE-2025-53823 vulnerability, which specifically affects WeGIA, an open-source web manager. This blog post aims to provide an in-depth analysis of this vulnerability, its potential impact, and the mitigation methods that can be applied. The vulnerability is particularly significant as it impacts web applications that cater to Portuguese-speaking users and charitable organizations, potentially exposing sensitive data and compromising system integrity.
Vulnerability Summary
CVE ID: CVE-2025-53823
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise, potential data leakage
Affected Products
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Product | Affected Versions
WeGIA | Versions prior to 3.4.5
How the Exploit Works
The vulnerability lies in the endpoint `/WeGIA/html/socio/sistema/processa_deletar_socio.php`, specifically within the `id_socio` parameter. This flaw allows the execution of arbitrary SQL commands, thus enabling an attacker to manipulate the database, compromise the confidentiality, integrity, and availability of stored data. This type of attack, known as SQL Injection, is one of the oldest and most potent web application vulnerabilities, allowing an attacker to interact directly with the website’s database.
Conceptual Example Code
Here’s a conceptual example of how an attacker might exploit this vulnerability using a malicious SQL command:
POST /WeGIA/html/socio/sistema/processa_deletar_socio.php HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
id_socio=1; DROP TABLE users;
In this example, the string `1; DROP TABLE users;` is injected into the `id_socio` parameter. If the parameter is not properly sanitized, the SQL interpreter will execute two SQL commands: the first one is the intended operation (with id_socio = 1), and the second one (DROP TABLE users) is the injected malicious operation which will delete the users table from the database.
Mitigation
The immediate mitigation for this vulnerability is to apply the vendor-provided patch, upgrading to WeGIA version 3.4.5. If, for any reason, immediate patching is not possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. They should be configured to detect and block suspicious and malicious SQL commands.
Nevertheless, the best long-term strategy would be to adopt secure coding practices that prevent SQL injection vulnerabilities, such as using parameterized queries or prepared statements, and always validating and sanitizing user input.