Secure Coding Review Report: "CustomerPortal" Application

Date: May 16, 2026 Target Application: CustomerPortal (Hypothetical SaaS Dashboard) Technology Stack: Python 3.12, Flask, SQLAlchemy (PostgreSQL) Frameworks Referenced: OWASP Top 10 (2026 Edition)

1. Executive Summary

[cite_start]A comprehensive secure code review was conducted on the "CustomerPortal" application to identify security vulnerabilities[cite: 35]. The audit revealed high and medium-severity issues, including SQL Injection and Broken Access Control.

2. Findings & Remediation

Finding 1: SQL Injection (OWASP A05:2026)

• Severity: CRITICAL
• Location: api/routes/orders.py
• Description: The application constructs SQL queries by directly concatenating unsanitized user input.
• Remediation: Leverage SQLAlchemy's ORM capabilities or parameterized queries. (See orders.py for the secured code).

Finding 2: Broken Access Control (OWASP A01:2026)

• Severity: HIGH
• Location: api/routes/users.py
• Description: The application fetches user profile data but fails to verify if the authenticated user has authorization to view that profile.
• Remediation: Enforce server-side authorization checks verifying that current_user.id matches the requested user_id. (See users.py for the secured code).

Finding 3: Empty Token Authentication Bypass (CVE-2026-34531)

• Severity: HIGH
• Location: requirements.txt & auth.py
• Description: A vulnerability in Flask-HTTPAuth version 4.8.0 allows attackers to bypass token-protected routes using an empty token.
• Remediation: Upgrade Flask-HTTPAuth to version 4.8.1 or newer and add database constraints.