Title: code-projects Online Student Management System in PHP unknown SQL Injection Description: Multiple SQL injection vulnerabilities in the "Online Student Management System in PHP" (code-projects) allow attackers to bypass authentication, enumerate and exfiltrate sensitive database records, and potentially achieve full database compromise or account takeover. Proof-of-Concept / Reproduction steps: - Send typical SQLi payloads to authentication or ID-based parameters. - Use boolean-based, error-based, or time-based techniques to extract schema and sensitive fields. - Observe successful login, additional returned rows, or error messages that reveal database structure. Evidence (code excerpts): - accounts.php Lines 24-27 and students.php Lines 41-44, showing direct user input concatenation without prepared statements. Impact: - Authentication bypass - Data disclosure (sensitive user and system data) - Data modification/deletion - Potential full database access depending on privileges.