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elo.. i can't seem to find any error in this form that i created.. this form is a change password module.. if u found any error pls tell.. i really need help..

 

[code=php:0]
<?php
require_once 'library/config.php';

if(isset($_SESSION['login_user']) && $_SESSION['login_user'] == 'ok'){

$user = $_SESSION['login_name'];
$id = $_SESSION['login_id'];


$sql = "SELECT * FROM tbl_customer WHERE Username = '$user'";
$result = dbQuery($sql);

$message =  (isset($_GET['error']) && $_GET['error'] != '') ? $_GET['error'] : '';	
?>
<head>
</head>
<div style="color:red"><?php echo $message; ?></style></div>
		<form action="modifyprofile2.php" method="post" name="changepass" id="changepass" onsubmit='return formValidator()'>
	<table style="font-family:arial">
	<td align="left">Old Password</td>
				<td align="left" valign="center"> 
				<input name="txtOldPassword" type="password" class="box" id="txtOldPassword" size="20" maxlength="20"></td>
				</tr>
				<tr> 
				<td align="left">New Password</td>
				<td align="left" valign="center"><input name="txtNewPassword1" type="password" class="box" id="txtNewPassword1" size="20" 						maxlength="20"><a href="#" class="hintanchor" onMouseover="showhint('Please enter 9-12 characters only', this, event, '150px')">[?]</a></td>
				</tr>
				<tr> 
				<td align="left">Repeat New Password</td>
				<td align="left" valign="center"> 
				<input name="txtNewPassword2" type="password" class="box" id="txtNewPassword2" size="20" maxlength="20">
				<small> </small></td>
				<tr>
				<input type="hidden" name="user" id='user' value="<?php echo $Username;?>"></td>
				</tr>
				<?php echo $user; ?>
				<td class="accountmenu" colspan="2" align="center"><input type="submit" id="changepass" value="Change Password" onClick="return checkPassword();"></td>
				<td><input type=button value="Close Window" onClick="javascript:window.close();"/></td>
</table>
</form>
<?php
}
else
{	
?>
<h1 align="center" style="font-family:arial">PAGE CANNOT BE DISPLAYED. PLEASE REGISTRER OR LOGIN BEFORE ACCESSING THIS PAGE. THANK YOU</h1>
<center><img src="header.jpg"/></center>
<center><a href="index.php">back to index</a></center>
<?php
}
?>
</body>

[/code]

 

here is the query form

[code=php:0]
<?php
require_once 'library/config.php';

$errorMessage = '';


$user = $_POST['user'];
$oldPassword = $_POST['txtOldPassword'];
$newPassword = $_POST['txtNewPassword1'];
    
    $sql = "SELECT Password FROM tbl_customer WHERE Password = md5('$oldPassword')";
    $result = dbQuery($sql);


if (dbNumRows($result) == 1){
        $sql = "UPDATE tbl_customer
        SET Username = '$user',Password = md5('$newPassword') WHERE Username = '$user'";
$result = dbQuery($sql);
        $message = "Account Successfully Modified!";
        header('Location:changepass.php?error='.urlencode($message));
    }
    else {
        $message = "Password Incorrect!";
        header('Location:changepass.php?error='.urlencode($message));
    }

    return $errorMessage;
?>

[/code]

 

 

help pls!

Link to comment
https://forums.phpfreaks.com/topic/70345-solved-help-with-update/
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first of all change

 

$sql = "SELECT Password FROM tbl_customer WHERE Password = md5('$oldPassword')";

 

to

 

$sql = "SELECT Username FROM tbl_customer 
WHERE Username='$user'
AND Password = md5('$oldPassword');";

 

I'm assuming that you can have more than one user with the same password. Instead of checking if the password exists *somewhere*, you should check if it exists where you think it exists. In this case under a specific user.

 

If two user's had the same password, in your version, no change would happen because the number of rows returned would have been >1 and not ==1. Which would prevent either of the users changing their passwords, etc etc.

 

      $sql = "UPDATE tbl_customer
        SET Username = '$user',Password = md5('$newPassword') WHERE Username = '$user'";

 

To

 

$sql="UPDATE tbl_customer
SET Password=md5('$newPassword')
WHERE Username='$user';";

 

You could even have just one query.

 

$sql="UPDATE tbl_customer
SET Password=md5('$newPassword')
WHERE Username='$user'
AND Password=md5('$oldPassword');";

 

This updates the password if the old password and username are correct.

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