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Friday, December 23, 2016

[Medium] HTML Injection - Reflected (POST)


# Introduction

 :BWAPP → Medium→ HTML Injection - reflected (POST)


# Training

 :As before, I did the exercises without reference to the source code. When I input the value used in the previous step, It will be output as plain text as follows.


So, I checked the input values to the server using the buff suite.


I found that the value passed to the server is encoded( <, > encoded to %3C, %3E).If I input this values, I thought that the specific function of html_post.php encode it once and pass it to the server. If I visualize what I think, it is as follows.


When I input the value, It was passed to the server as follows.


When I forward values, I could use the html tags.



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