## 🔒 CRITICAL SQL Injection in core/appHandler.js Exposes User Data
A critical SQL injection vulnerability has been identified within a core application file, exposing a direct path for attackers to execute arbitrary database commands. The flaw resides in a single line of code where user input is directly concatenated into an SQL query string without any sanitization or parameterization. This creates a textbook injection point, allowing malicious actors to potentially manipulate the query to access, modify, or delete sensitive user data, including names and IDs.

The vulnerability is isolated to the `core/appHandler.js` file at line 10, where the code constructs a query for user authentication: `var query = "SELECT name,id FROM Users WHERE login='" + req.body.login + "'";`. The use of string concatenation with the `req.body.login` parameter is the root cause. Classified under CWE-89 and OWASP A03:2021 - Injection, this flaw carries a high severity rating due to the direct impact on data integrity and confidentiality.

While currently a single instance, the presence of such a fundamental security flaw in a core handler raises immediate red flags about the application's overall security posture. It signals potential oversight in secure coding practices and necessitates urgent remediation. The recommended fix is to replace the vulnerable code with parameterized queries or prepared statements to properly separate data from commands, a standard defense against injection attacks. Failure to patch this could lead to significant data breaches and compliance failures.
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- **Source**: GitHub Issues
- **Sector**: The Lab
- **Tags**: SQL Injection, Security Vulnerability, Code Security, Data Breach Risk, Web Application
- **Credibility**: unverified
- **Published**: 2026-04-06 07:27:07
- **ID**: 51128
- **URL**: https://whisperx.ai/en/intel/51128