what is html injection on a sample form having textbox, radio button, reset button, submit button
<form>
<table>
<tr>
<td>
<label for="uname">Name</label>
</td>
<td>
<input type="text" id="uname" name="username">
</td>
</tr>
<tr>
<td>
<label for="age">Age</label>
</td>
<td>
<input type="text" name="userage" id="age" size="2" maxlength="2">
</td>
</tr>
<tr>
<td>
<label>Gender</label>
</td>
<td>
<label>
<input type="radio" value="f" name="gender"> Female</label>
<label>
<input value="m" type="radio" name="gender"> Male</label>
</td>
</tr>
<tr>
<td></td>
<td>
<input type="submit" value="Submit">
<input type="reset">
</td>
</tr>
</table>
</form>