We can bypass the login page by simply adding ' or 1=1 - or ') or 1=1- to the login ID and placing any value in the password field.
If you see a pop-up message, then the web page is subjected to a Cross-Site Scripting attack.
'var s="" document.write(s)' - Quick testĪppend any of the below strings to your web page's URL that take parameters. Shown below is the structure of the sample code.Make sure to remove any line breaks from the sample URL when copying and pasting. Sorry, the highlighted text didn't show up correctly here. Run the application and follow the sample described in this article.
Ran online private server sql injection update#
Update the connection string in web.config. This sample code requires Visual Studio 2008 or newer if you don't have it, download the 90-day trial edition from Microsoft ( Click here). Create a new login and map it to TestDB. Create a new database and name it TestDB. Sample Application/Using the code Steps to Set Up the Sample Application The mentioned vulnerabilities can happen via: SQL Injection and Cross-Site Scripting attacks are not relatively new topics. Very common with PHP and Classic ASP applications. Insertion of a SQL query via input data from client to application that is later passed to an instance of SQL Server for parsing and execution. Enables malicious attackers to inject client-side script (JavaScript) or HTML markup into web pages viewed by other users. 
What is SQL Injection and Cross-Site Scripting
- Added example to demonstrate JavaScript event injection vulnerability. You are welcome to download this sample code. So I decided to put together a small sample code to examine the vulnerabilities that I found. I found lots of articles regarding this topic through Google but reading and experimenting with them are virtually two different things. For the past couple months, I was helping on patching up several legacy web applications from Cross-Site Scripting and SQL Injection vulnerabilities.
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