Questions tagged [sql-injection]

SQL injection is a code injection technique, used to attack data driven applications, in which malicious SQL statements are inserted into an entry field for execution.

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My Script Inserts users into a database and hashes the password, I need to know how to prevent SQL injection with Procedural-Oriented MySQLi [closed]

My script works but I just want to know how I can protect myself from SQL injection with Procedural Oriented MySQLi. Most of the tutorials are about Object-Oriented MySQLi and I'm not familiar with it ...
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1 answer
308 views

Recieving an XSS Injection: <script>alert('xssvuln');</script>

I would very much appreciate it if someone could review the php script below for any security risks. I have a live website using shared hosting. There's a page that accepts text submissions from users....
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3 votes
1 answer
429 views

Sanitizing user form input in php

Security threats in mind: SQL Injections!!! --- Solutions: Prepared Statements (PDO) and including $bpdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, false); in ...
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3 votes
3 answers
223 views

Email Validation in PHP

Is this script sufficient enough to validate user email input? ...
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3 votes
1 answer
391 views

Does PDO::quote helps me to protect me against sql injection?

I have to process raw sql user input with Laravel. I've backed them up as follows: ...
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2 votes
1 answer
97 views

Does this PDO process look protected from SQL injection?

Does this process look protected from SQL injection attacks? Is there something I could possibly change to make it more protected? ...
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3 votes
1 answer
49 views

Displaying a user's uploaded posts

I'm working on prepared statements for my website and I'm wondering if it's possible to have multiple prepared statements one after another. In this example, I have 2 select statements. I'm hoping ...
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11 votes
1 answer
212 views

Safe dynamic SQL for generic search

Prompted by discussion about SQL injection, I wanted to put a proof of concept forward to get feedback about whether this is in fact safe and protected against SQL injection or other malicious use. ...
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1 vote
1 answer
253 views

PHP MySQLi Prepared Statements: Can this select query be hacked/injected?

i want to know can this be hacked/injected? ...
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3 votes
2 answers
269 views

Database Model Security For Book Inventory

This code is one of the models developed for the Book Inventory application that is open for review. It is also based on a comment on this answer to a C# question. Based on the comment I did some ...
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1 vote
1 answer
81 views

PHP code for search page

Want to show you part of code that I wrote to process search request. User commit search by articles (codes) of products. The goal is to allow user write his search request to textarea element in any ...
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3 votes
1 answer
1k views

PHP code to insert phone number and IP address into a table if not already present

I am currently coding a PHP script that connects to a database and inserts a phone number and IP address if either item is not present in the table. I believe I have completed it and it is working but ...
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3 votes
4 answers
2k views

using $_POST array to prepare PDO statement with variables

I have been developing a little, private Blog Site to make notes/ stories of pen and paper rpg games available for me and my players. This is my first project. As I am new to coding in PHP and MySQL ...
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2 votes
2 answers
94 views

Is this a 100% safe from SQL Injection and will work correctly for any input? [closed]

...
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2 votes
1 answer
61 views

Showing all records on a webpage

I have a connection with my database to show all my records on a webpage, and I'm not sure if this code is safe: ...
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1 vote
0 answers
81 views

HTML file with a submit form

I have an HTML file that contains a submit form, which asks the users the fill in their personal info: then it will post and store into the DB by method of PHP SQL: ...
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6 votes
1 answer
873 views

PHP login script

I'm hoping someone would be able to identify if my code is prone to SQL injections, and just overall see if there is anything that could be done better. This is also my first time using MySQLi ...
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1 vote
0 answers
506 views

Protection from SQL injection

I have this code, which is working correctly, but I am sure that it allows SQL injection attacks. ...
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-1 votes
1 answer
2k views

Mysql flexible insert record with bind_param or bind_value

I want to insert rows in a database table with the precaution of SQL-injection. I'm using below flexible MySQL insert function, which enters a record in a given table. Is this the best approach or is ...
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0 votes
1 answer
176 views

PHP & MySQLi Login Script - Is it safe from Injection?

I've been geeking up on MySQLi prepared statements to avoid potential SQL injection and I have managed to modify my legacy code (previously just using mysqli_real_escape_string). I am looking for ...
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3 votes
2 answers
120 views

User authentication SQL injection [closed]

Is this authentication mechanism vulnerable to SQL injection? If so, how could one exploit it, and what is the most effective way to mitigate this? ...
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1 answer
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Checking whether a user is on the donors list

I was wondering if I could please get some justification if the PHP code I wrote using Mysqli prepared statements would be able to withstand SQL injection attacks. I have one field that gets a value ...
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0 votes
1 answer
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Link shortening script

I wrote this script for a link shortener just for fun. Is it safe, or is it very easy to inject SQL have other security shortcomings? Also, do you have any tips against MySQL injection? I don't know ...
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1 vote
1 answer
126 views

Prepared statements in PHP

I just heard of prepared statement in PHP and decided to prevent SQL injection with it and wrote a script testing it. I would like to know what security threats this script can prevent, what security ...
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2 votes
2 answers
231 views

Email subscription queries for a PHP website

Is this code resistant against injection? I already used 'real-escape-string' but I don't know if this good enough. As you see I replaced my personal info. And the code does work. I'm building this ...
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-1 votes
1 answer
128 views

Searching for topic categories using mysqli [closed]

Is this code safe from injection, xss and whole other attacks or no ? The below code is for search box : ...
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2 votes
1 answer
225 views

Registering users bank account and logging in securely

I wrote a php script to register a user's bank account and I've tried to make the login as secure as possible, but I wonder if there are any flaws and is it's free from xss attacks and sql injection ...
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2 votes
3 answers
3k views

Booking appointments with MySQLi and PHP

The following code books one appointment for one or more slots. I have never used database before, but have seen so many warnings regarding SQL injections. Since it has never affected me I have not ...
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3 votes
1 answer
4k views

Function for inserting data into database

I have this function to ease out the task of inserting data into databases. I am not very sure if it is secure to use it this way. Any suggestions on improving it? ...
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12 votes
4 answers
5k views

Inserting robot moves into an SQLite3 database

I'm just wondering if you would consider this to be safe from SQL injection. A peculiarity of my program is I need to dynamically access table names depending on my scenario. This is not for ...
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5 votes
2 answers
2k views

Inserting a record into MySQL with a timestamp

I'm starting with PHP so I can save data to a MySQL database. I read a lot and it seems the "escape" strings is not so safe. This is my code: ...
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2 votes
1 answer
142 views

Inserting a record into a MySQL table using PDO

Already many days I'm documenting about the SQL Injection. I was wondering if the code I wrote is vulnerable in some of its parts. ...
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1 vote
2 answers
114 views

Security concern for SQL Injections/XSS

This question is everywhere, and I looked at many answers. A lot suggest using mysql_real_escape_string but that isn't an option, since it's depreciated now. ...
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2 votes
2 answers
1k views

PHP Dynamic QueryBuilder function - Security

This function is a working function, which builds a number of queries depending on the values of $_POST. ...
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4 votes
1 answer
86 views

Possibility of SQL Injection

I am requesting a review of a portion of a 600 lines of code. This portion of the code process a filter that is farther down the page. It takes in the parameters and formats them into a query. Now I ...
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1 vote
1 answer
215 views

Product inventory database

I just finished writing a program which working with a database. Throughout the process when working with people to get past some of the hurdles I faced I was ridiculed for my SQL statements. I have ...
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3 votes
1 answer
149 views

Stored procedure to query custom data tables as dynamic SQL

There's a lot going on here, but the background for why this is necessary is that there is a set schema, or 'core' set of tables that are prefixed with 'bu', and any core table can have a custom table ...
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10 votes
3 answers
1k views

Inserting OAuth data into a database

I am totally new to PHP. I just wrote a PHP script for google oauth to pull the data and insert into my database. I don't know if my code is vulnerable to SQL injection. Should I have used prepared ...
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-1 votes
1 answer
112 views

Improving PHP Security of Login

One of my github issues is below. I am having some problems with my security, is there anything that I should or need to improve. Here is an example of code that I use, but throughout the script there ...
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-1 votes
2 answers
142 views

Validating users with MySQL

One of my friends told me that my validate.php file has some problems with SQL injections. Please feel free to commit it on GitHub. ...
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2 votes
2 answers
102 views

Read and display data from MySQL table

Is there any security threat here? ...
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3 votes
2 answers
988 views

Increase view counter with each page view

My question is similar to before, but now the code has changed completely. I would like to understand if this code is vulnerable to mysql injection. ...
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-2 votes
2 answers
101 views

Authentication check in index.php file

I am aware that this code is vulnerable for SQL injections, but I don't know how to avoid it. ...
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6 votes
1 answer
353 views

mysql_safe_query()

I have been thinking of a sql-injection free implementation in dynamic languages. Here's what I came with. All the code was written just for fun and learning purposes. I would like to share it and ...
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5 votes
1 answer
270 views

Validating user supplied input

I was assigned a task to fix the SQL injection flaw reported by a code analysis tool. I am not the original author of the code. I am fairly knowledgeable with SQL. ...
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  • 161
3 votes
1 answer
453 views

Secure login system

The assignment is to create a login system secured for SQL injections and XSS. It's in PHP and I'm using PDO with prepared statements obviously. Which from my point of view should protect against the ...
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  • 33
2 votes
3 answers
5k views

A very secure procedural MySQLI login script against injections

I know there are other ways to create a login script like Object Oriented, Prepared Statements and PDO, but how about those old MySQL PHP users like me trying to change from old style to the new ways? ...
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5 votes
1 answer
881 views

For a login portal, what security measures are needed to prevent unauthorized access?

I'm designing a login portal that has one angularjs page that displays/processes data queried from a database. I'm relying on a few php pages (a loginpage.php [verifies credentials/loads session ...
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1 vote
1 answer
94 views

Populate the database with new tweet data from the json_cache table

I'm really a newbie with code, and I wish to prepare all my statements to avoid SQL injection. I have searched a lot on the internet, but this wrapper/API doesn't look anything like the examples given....
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7 votes
2 answers
1k views

Preventing SQL injection by converting all characters to their ASCII values

In order to prevent SQL injection, I'm converting every character of a string to be inserted in the database into its ASCII value before performing the query. In order to read the value of the string ...
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