CVE-2026-3021: Wakyma Web Application SQLi Vulnerability

CVE-2026-3021 Overview

CVE-2026-3021 is a Non-relational SQL injection vulnerability (NoSQLi) in the Wakyma web application, specifically affecting the endpoint vets.wakyma.com/centro/equipo/empleado. This vulnerability allows an authenticated user to alter a GET request to the affected endpoint for the purpose of injecting special NoSQL commands, leading to the enumeration of sensitive employee data.

Critical Impact

Authenticated attackers can exploit this NoSQL injection flaw to extract sensitive employee information from the Wakyma veterinary practice management application, potentially compromising personal data and business-critical records.

Affected Products

• Wakyma Web Application (vets.wakyma.com)
• Employee Management Endpoint (/centro/equipo/empleado)

Discovery Timeline

• 2026-03-16 - CVE-2026-3021 published to NVD
• 2026-03-16 - Last updated in NVD database

Technical Details for CVE-2026-3021

Vulnerability Analysis

This NoSQL injection vulnerability (CWE-943: Improper Neutralization of Special Elements in Data Query Logic) exists in the Wakyma web application's employee management functionality. The application fails to properly sanitize user-supplied input within GET request parameters before incorporating them into NoSQL database queries. An authenticated user can craft malicious requests containing NoSQL operators or commands that modify the intended query logic, enabling unauthorized data extraction.

The vulnerability requires network access and low-privilege authentication to exploit. While the attack complexity is low, the impact is primarily limited to confidentiality breaches. An attacker cannot modify or delete data through this specific vulnerability, but can enumerate and extract sensitive employee records that should be access-controlled.

Root Cause

The root cause stems from insufficient input validation and sanitization of user-controlled parameters in the /centro/equipo/empleado endpoint. The application directly incorporates request parameters into NoSQL queries without properly escaping or filtering special characters and operators. This allows injection of NoSQL-specific syntax such as $where, $gt, $ne, $regex, and other operators that can manipulate query behavior.

Attack Vector

The attack vector is network-based, requiring an authenticated session with the Wakyma application. An attacker with valid credentials can manipulate GET request parameters to inject NoSQL commands. For example, by modifying parameter values to include operators like {"$ne": null} or {"$gt": ""}, an attacker can bypass intended query restrictions and retrieve records they should not have access to.

The vulnerability manifests in the query parameter handling of the employee endpoint. Malicious payloads can be injected through URL parameters to alter database query logic and enumerate employee records. For detailed technical information, refer to the INCIBE Security Notice.

Detection Methods for CVE-2026-3021

Indicators of Compromise

• Unusual GET requests to /centro/equipo/empleado containing NoSQL operators like $where, $gt, $ne, $regex, $exists, or $or
• Multiple rapid requests from the same authenticated session targeting the employee endpoint with varying parameter values
• Web server logs showing JSON-like syntax or special characters (curly braces, dollar signs) in URL query parameters
• Anomalous data access patterns where users query more employee records than typical for their role

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block NoSQL injection patterns in GET parameters
• Deploy application-level logging to track all requests to the /centro/equipo/empleado endpoint with full parameter capture
• Configure SIEM correlation rules to alert on multiple failed or suspicious queries from the same user session
• Enable database query auditing to identify queries with unexpected operators or unusual result set sizes

Monitoring Recommendations

• Monitor web server access logs for requests containing URL-encoded NoSQL operators such as %24ne, %24gt, %24where, or %24regex
• Set up alerts for authenticated users accessing abnormal quantities of employee records within short time windows
• Track and baseline normal API usage patterns to identify anomalous enumeration attempts
• Review application error logs for database query failures that may indicate injection attempts

How to Mitigate CVE-2026-3021

Immediate Actions Required

• Review and restrict access to the /centro/equipo/empleado endpoint to only users who require employee data access
• Implement additional authentication controls or rate limiting on sensitive employee data endpoints
• Deploy WAF rules to filter known NoSQL injection patterns in incoming requests
• Audit recent access logs for the affected endpoint to identify potential exploitation attempts

Patch Information

No specific patch information is available at this time. Organizations should contact Wakyma directly or monitor the INCIBE Security Notice for updates on official remediation guidance.

Workarounds

• Implement server-side input validation to reject requests containing NoSQL operators ($where, $gt, $ne, $regex, $or, $and, $exists) in parameter values
• Use parameterized queries or ORM methods that properly escape user input before database query construction
• Apply the principle of least privilege to database accounts used by the web application
• Consider implementing additional access controls such as IP whitelisting for administrative endpoints

# Example WAF rule to block common NoSQL injection patterns
# Add to your WAF configuration or nginx/Apache mod_security rules
SecRule ARGS "@rx (\$where|\$gt|\$lt|\$ne|\$regex|\$or|\$and|\$exists|\$nin|\$in)" \
    "id:100001,phase:2,deny,status:403,msg:'Potential NoSQL Injection Detected'"