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check for query parameters before using them

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This commit is contained in:
Uwe Steinmann 2016-03-23 08:38:48 +01:00
parent e0b55e8a0d
commit 85636ab04a
1 changed files with 5 additions and 5 deletions
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10
op/op.ClearClipboard.php
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@ -31,10 +31,10 @@ $session->setSplashMsg(array('type'=>'success', 'msg'=>getMLText('splash_cleared
add_log_line();
if($_GET['refferer'])
if(isset($_GET['refferer']) && $_GET['refferer'])
header("Location:".urldecode($_GET['refferer']));
else {
$folderid = $_GET['folderid'];
header("Location:../out/out.ViewFolder.php?folderid=".$folderid);
}
elseif(isset($_GET['folderid']) && is_numeric($_GET['folderid']))
header("Location:../out/out.ViewFolder.php?folderid=".$_GET['folderid']);
else
header("Location:../index.php");
?>