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🔒 Fix SQL injection vulnerability in user.php save_User method - #32

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security/php-sql-injection-fix-14841001561109077330
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🔒 Fix SQL injection vulnerability in user.php save_User method#32
tsainez wants to merge 1 commit into
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security/php-sql-injection-fix-14841001561109077330

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@tsainez

@tsainez tsainez commented Jul 14, 2026

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🎯 What: Fixed an SQL injection vulnerability in the save_User method within php/oop/user.php.
⚠️ Risk: By directly concatenating variables ($firstName, $lastName, $email) into the SQL query, malicious inputs (such as ' OR '1'='1) could manipulate the query logic, leading to unauthorized data access, modification, or potential privilege escalation.
🛡️ Solution: Updated database.php's run_query() method to support prepared statement parameters. Refactored the save_User method to use standard ? placeholders, safely binding parameters so that malicious inputs are treated strictly as data instead of executable SQL commands.


PR created automatically by Jules for task 14841001561109077330 started by @tsainez

…ized queries

- Updated `database.php` to accept an optional `$params` array in the `run_query` method to properly pass parameters to `PDOStatement::execute()`.
- Refactored `user.php`'s `save_User` method to use parameterized queries with `?` placeholders instead of concatenating raw user input strings directly into the SQL statement, mitigating SQL injection vulnerabilities.

Co-authored-by: tsainez <13399044+tsainez@users.noreply.github.com>
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