CVE-2025-26609: Wegia Wegia SQL Injection Vulnerability

CVE-2025-26609 Overview

CVE-2025-26609 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 familiar_docfamiliar.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 remote attackers to execute arbitrary SQL queries against the backend database, potentially leading to complete data compromise, unauthorized data modification, and full system takeover.

Affected Products

• WeGIA Web Manager versions prior to 3.2.14
• All WeGIA installations using the vulnerable familiar_docfamiliar.php endpoint
• Portuguese language institutional web management deployments running unpatched versions

Discovery Timeline

• 2025-02-18 - CVE-2025-26609 published to NVD
• 2025-02-28 - Last updated in NVD database

Technical Details for CVE-2025-26609

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) in WeGIA's familiar_docfamiliar.php endpoint represents a severe security flaw that allows attackers to manipulate database queries through improper input handling. The vulnerability is accessible over the network without requiring authentication or user interaction, making it particularly dangerous for exposed installations.

SQL Injection occurs when user-supplied data is incorporated into SQL queries without proper validation, sanitization, or parameterization. In this case, the familiar_docfamiliar.php endpoint fails to properly handle input, allowing malicious SQL statements to be injected and executed against the underlying database.

The impact extends beyond simple data theft—attackers could potentially modify or delete data, create administrative accounts, or use database-specific features to gain command execution on the underlying server.

Root Cause

The root cause of this vulnerability is improper input validation and the lack of parameterized queries or prepared statements in the familiar_docfamiliar.php endpoint. User-controlled input is directly concatenated into SQL query strings without adequate sanitization, allowing attackers to break out of the intended query context and inject malicious SQL commands.

Attack Vector

The attack vector is network-based, requiring no authentication or user interaction. An attacker can craft malicious HTTP requests to the familiar_docfamiliar.php endpoint containing SQL injection payloads. These payloads can leverage various SQL injection techniques including:

• Union-based injection - Extracting data from other database tables by appending UNION SELECT statements
• Error-based injection - Using database error messages to extract information
• Blind injection - Inferring database contents through true/false responses or time delays
• Stacked queries - Executing multiple SQL statements to modify data or database structure

The vulnerability allows attackers to bypass authentication controls, extract sensitive institutional data, modify records, or potentially escalate to remote code execution depending on database configuration and privileges.

Detection Methods for CVE-2025-26609

Indicators of Compromise

• Unusual or malformed HTTP requests to the familiar_docfamiliar.php endpoint containing SQL syntax characters such as single quotes, double dashes, or UNION keywords
• Database error messages appearing in application logs or HTTP responses
• Unexpected database queries or query patterns in database audit logs
• Evidence of data exfiltration or unauthorized data access in application logs

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block common SQL injection patterns targeting the familiar_docfamiliar.php endpoint
• Monitor web server access logs for requests containing SQL injection indicators such as ', --, UNION, SELECT, DROP, or INSERT in parameter values
• Enable database query logging and audit trails to identify anomalous query patterns
• Deploy intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

• Configure real-time alerting for any requests to familiar_docfamiliar.php containing suspicious characters or keywords
• Establish baseline database query patterns and alert on deviations
• Monitor for unusual database account activity or privilege escalation attempts
• Review application and web server logs regularly for signs of exploitation attempts

How to Mitigate CVE-2025-26609

Immediate Actions Required

• Upgrade WeGIA to version 3.2.14 or later immediately, as this version contains the security fix for this vulnerability
• If immediate patching is not possible, restrict network access to the WeGIA application to trusted networks only
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules as a temporary defensive measure
• Review database logs for any signs of prior exploitation and conduct a security audit if suspicious activity is detected

Patch Information

The vulnerability has been addressed in WeGIA version 3.2.14. All users are strongly advised to upgrade to this version or later. The security advisory and patch details are available through the WeGIA GitHub Security Advisory.

Workarounds

• There are no known workarounds for this vulnerability according to the vendor advisory
• As a defense-in-depth measure, implement network-level access controls to limit exposure of the WeGIA application
• Consider placing the application behind a reverse proxy with SQL injection filtering capabilities
• Apply the principle of least privilege to the database account used by the WeGIA application to limit potential damage from successful exploitation

# Network access restriction example (iptables)
# Restrict access to WeGIA application to trusted IP ranges only
iptables -A INPUT -p tcp --dport 80 -s 192.168.1.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -s 192.168.1.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP