CVE-2025-26607: Wegia Wegia SQL Injection Vulnerability

CVE-2025-26607 Overview

CVE-2025-26607 is a critical SQL Injection vulnerability discovered in WeGIA, an open source Web Manager for Institutions with a focus on Portuguese language users. The vulnerability exists in the documento_excluir.php endpoint and could allow an attacker to execute arbitrary SQL queries, enabling unauthorized access to sensitive information stored in the application's database.

Critical Impact

This SQL Injection vulnerability allows unauthenticated attackers to execute arbitrary SQL queries against the WeGIA database, potentially exposing all stored institutional data and enabling complete database compromise.

Affected Products

• WeGIA versions prior to 3.2.13
• WeGIA Web Manager for Institutions
• All WeGIA installations using the vulnerable documento_excluir.php endpoint

Discovery Timeline

• 2025-02-18 - CVE-2025-26607 published to NVD
• 2025-02-28 - Last updated in NVD database

Technical Details for CVE-2025-26607

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) affects the documento_excluir.php endpoint in WeGIA. SQL Injection occurs when user-supplied input is incorporated into SQL queries without proper sanitization or parameterization. In this case, the vulnerable endpoint fails to adequately validate or sanitize input parameters before using them in database queries.

The vulnerability is particularly severe because it requires no authentication and can be exploited remotely over the network. An attacker exploiting this flaw could potentially extract sensitive institutional data, modify or delete database records, or escalate their access within the application.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries in the documento_excluir.php endpoint. When user-controlled input is directly concatenated into SQL query strings without proper escaping or the use of prepared statements, attackers can manipulate the query structure to perform unauthorized database operations.

Attack Vector

The attack vector is network-based, requiring no user interaction or prior authentication. An attacker can craft malicious HTTP requests to the documento_excluir.php endpoint containing SQL injection payloads in the vulnerable parameter. Upon successful exploitation, the attacker gains the ability to:

• Extract sensitive data from the database through UNION-based or blind SQL injection techniques
• Modify or delete existing records
• Potentially execute administrative database operations depending on database user privileges
• In some configurations, read or write files on the underlying server

The vulnerability manifests in the document deletion functionality of WeGIA. Attackers can inject malicious SQL statements through input parameters that are processed by the documento_excluir.php script. For detailed technical information, refer to the GitHub Security Advisory.

Detection Methods for CVE-2025-26607

Indicators of Compromise

• Unusual or malformed HTTP requests to the documento_excluir.php endpoint containing SQL syntax
• Database error messages appearing in application logs related to the document deletion functionality
• Unexpected database queries or query patterns in database audit logs
• Evidence of data exfiltration or unauthorized database access attempts

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in requests to WeGIA endpoints
• Monitor application and web server logs for requests containing SQL keywords (UNION, SELECT, DROP, etc.) targeting documento_excluir.php
• Enable database query logging and alert on anomalous query patterns
• Deploy intrusion detection signatures for common SQL injection attack patterns

Monitoring Recommendations

• Enable verbose logging for the WeGIA application and review logs regularly for suspicious activity
• Monitor database connection patterns for unusual query execution times or volumes
• Set up alerts for HTTP 500 errors or database-related exceptions from the WeGIA application
• Implement network traffic analysis to detect potential data exfiltration attempts

How to Mitigate CVE-2025-26607

Immediate Actions Required

• Upgrade WeGIA to version 3.2.13 or later immediately
• If immediate upgrade is not possible, restrict network access to the WeGIA application
• Review database logs for any evidence of exploitation
• Consider placing a WAF in front of the application to filter SQL injection attempts as a temporary measure

Patch Information

The vulnerability has been addressed in WeGIA version 3.2.13. All users are strongly advised to upgrade to this version or later. The patch information and security advisory are available through the GitHub Security Advisory.

Workarounds

• There are no known workarounds for this vulnerability according to the vendor advisory
• Network-level restrictions can limit exposure but do not remediate the underlying issue
• Implementing a WAF with SQL injection protection may provide temporary mitigation while planning the upgrade
• Consider temporarily disabling the document deletion functionality if operationally feasible

# Recommended: Upgrade WeGIA to patched version
# Check current version and upgrade to 3.2.13 or later
# Consult WeGIA documentation for upgrade procedures

# Temporary mitigation: Restrict access to vulnerable endpoint via web server
# Apache example - add to .htaccess or virtual host configuration:
<Files "documento_excluir.php">
    Require ip 10.0.0.0/8
    Require ip 192.168.0.0/16
</Files>

# Nginx example - add to server block:
location ~ documento_excluir\.php$ {
    allow 10.0.0.0/8;
    allow 192.168.0.0/16;
    deny all;
}