CVE-2025-26606: Wegia Wegia SQL Injection Vulnerability

CVE-2025-26606 Overview

CVE-2025-26606 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 informacao_adicional.php endpoint, allowing attackers to execute arbitrary SQL queries and gain unauthorized access to sensitive information stored in the application's database.

Critical Impact

This SQL Injection vulnerability allows unauthenticated remote attackers to execute arbitrary SQL queries, potentially leading to complete database compromise, data exfiltration, and unauthorized access to sensitive institutional information.

Affected Products

• WeGIA versions prior to 3.2.13
• WeGIA Web Manager for Institutions

Discovery Timeline

• 2025-02-18 - CVE-2025-26606 published to NVD
• 2025-02-28 - Last updated in NVD database

Technical Details for CVE-2025-26606

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) affects the informacao_adicional.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 accepts input that is directly concatenated into database queries, enabling attackers to manipulate the query structure and execute malicious SQL commands.

The vulnerability is particularly severe because it requires no authentication and can be exploited remotely over the network. Successful exploitation could allow attackers to read, modify, or delete database contents, bypass authentication mechanisms, or potentially execute commands on the underlying database server depending on database configuration.

Root Cause

The root cause of CVE-2025-26606 is improper input validation and lack of parameterized queries in the informacao_adicional.php endpoint. The application fails to sanitize user-supplied data before incorporating it into SQL statements, allowing malicious SQL syntax to be interpreted as part of the query rather than as data. This classic input validation failure enables attackers to break out of the intended query context and inject their own SQL commands.

Attack Vector

The attack vector is network-based, requiring no prior authentication or user interaction. An attacker can craft malicious HTTP requests targeting the informacao_adicional.php endpoint with specially crafted SQL payloads embedded in request parameters. The vulnerable endpoint processes these inputs without adequate validation, passing the malicious content directly to the database engine.

Typical exploitation involves techniques such as UNION-based injection to extract data from other tables, boolean-based blind injection to infer database contents, or time-based blind injection when direct output is not available. Attackers may leverage these techniques to enumerate database schema, extract credentials, access sensitive institutional data, or potentially escalate to remote code execution if database features like xp_cmdshell (SQL Server) or LOAD_FILE (MySQL) are available.

Detection Methods for CVE-2025-26606

Indicators of Compromise

• Unusual or malformed requests to the informacao_adicional.php endpoint containing SQL syntax characters such as single quotes, UNION statements, or comment sequences
• Database error messages exposed in application responses indicating SQL syntax errors
• Unexpected database queries or access patterns in database audit logs
• Elevated database activity or unusual data access patterns from the web application service account

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect common SQL injection patterns targeting the informacao_adicional.php endpoint
• Monitor application and web server logs for requests containing suspicious SQL keywords and injection patterns
• Enable database query logging and audit failed query attempts or unusual query structures
• Deploy intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

• Configure alerting for HTTP requests to informacao_adicional.php with abnormal parameter lengths or special characters
• Monitor database server for unexpected queries, particularly those involving system tables or information schema
• Track failed authentication attempts and unusual data access patterns that may indicate post-exploitation activity
• Implement real-time log analysis for SQL injection indicators across web server and database logs

How to Mitigate CVE-2025-26606

Immediate Actions Required

• Upgrade WeGIA to version 3.2.13 or later immediately to remediate this vulnerability
• If immediate patching is not possible, consider temporarily restricting access to the informacao_adicional.php endpoint through firewall rules or web server configuration
• Review database access logs for any evidence of prior exploitation
• Implement Web Application Firewall (WAF) rules as an additional layer of defense while preparing for the upgrade

Patch Information

WeGIA has addressed this vulnerability in version 3.2.13. All users are strongly advised to upgrade to this version or later. The fix implements proper input validation and parameterized queries to prevent SQL injection attacks. For detailed patch information and upgrade instructions, refer to the WeGIA Security Advisory on GitHub.

Workarounds

• According to the vendor advisory, there are no known workarounds for this vulnerability
• As a temporary measure, restrict network access to the vulnerable endpoint using firewall rules
• Deploy a Web Application Firewall (WAF) with SQL injection detection rules to filter malicious requests
• Consider temporarily disabling the affected functionality until the patch can be applied