diff --git a/htdocs/core/photos_resize.php b/htdocs/core/photos_resize.php
index ae73347edfa..778c37f686a 100644
--- a/htdocs/core/photos_resize.php
+++ b/htdocs/core/photos_resize.php
@@ -197,7 +197,7 @@ llxHeader($head, $langs->trans("Image"), '', '', 0, 0, array('/includes/jquery/p
 
 print load_fiche_titre($langs->trans("ImageEditor"));
 
-$infoarray=dol_getImageSize($dir."/".urldecode($_GET["file"]));
+$infoarray=dol_getImageSize($dir."/".GETPOST("file"));
 $height=$infoarray['height'];
 $width=$infoarray['width'];
 print $langs->trans("CurrentInformationOnImage").': ';
@@ -218,7 +218,7 @@ print '<legend>'.$langs->trans("Resize").'</legend>';
 print $langs->trans("ResizeDesc").'<br>';
 print $langs->trans("NewLength").': <input class="flat" name="sizex" size="10" type="text" > px  &nbsp; '.$langs->trans("or").' &nbsp; ';
 print $langs->trans("NewHeight").': <input class="flat" name="sizey" size="10" type="text" > px &nbsp; <br>';
-print '<input type="hidden" name="file" value="'.$_GET['file'].'" />';
+print '<input type="hidden" name="file" value="'.dol_escape_htmltag(GETPOST('file')).'" />';
 print '<input type="hidden" name="action" value="confirm_resize" />';
 print '<input type="hidden" name="product" value="'.$id.'" />';
 print '<input type="hidden" name="modulepart" value="'.$modulepart.'" />';
@@ -240,7 +240,7 @@ print '<br>'."\n";
 
 if (! empty($conf->use_javascript_ajax))
 {
-	$infoarray=dol_getImageSize($dir."/".urldecode($_GET["file"]));
+	$infoarray=dol_getImageSize($dir."/".GETPOST("file"));
 	$height=$infoarray['height'];
 	$width=$infoarray['width'];
 	$widthforcrop=$width; $refsizeforcrop='orig'; $ratioforcrop=1;
@@ -260,7 +260,7 @@ if (! empty($conf->use_javascript_ajax))
 	print '<img src="'.DOL_URL_ROOT.'/viewimage.php?modulepart='.$modulepart.'&entity='.$object->entity.'&file='.$original_file.'" alt="" id="cropbox" width="'.$widthforcrop.'px"/>';
 	print '</div>';
 	print '</div><br>';
-	print '<form action="'.$_SERVER["PHP_SELF"].'?id='.$id.'" method="post">
+	print '<form action="'.$_SERVER["PHP_SELF"].'?id='.$id.'" method="POST">
 	      <div class="jc_coords">
 	         '.$langs->trans("NewSizeAfterCropping").':
 	         <label>X1 <input type="text" size="4" id="x" name="x" /></label>
@@ -271,13 +271,13 @@ if (! empty($conf->use_javascript_ajax))
 	         <label>H <input type="text" size="4" id="h" name="h" /></label>
 	      </div>
 
-	      <input type="hidden" id="file" name="file" value="'.urlencode($original_file).'" />
+	      <input type="hidden" id="file" name="file" value="'.dol_escape_htmltag($original_file).'" />
 	      <input type="hidden" id="action" name="action" value="confirm_crop" />
-	      <input type="hidden" id="product" name="product" value="'.$id.'" />
+	      <input type="hidden" id="product" name="product" value="'.dol_escape_htmltag($id).'" />
 	      <input type="hidden" id="refsizeforcrop" name="refsizeforcrop" value="'.$refsizeforcrop.'" />
 	      <input type="hidden" id="ratioforcrop" name="ratioforcrop" value="'.$ratioforcrop.'" />
-          <input type="hidden" name="modulepart" value="'.$modulepart.'" />
-	      <input type="hidden" name="id" value="'.$id.'" />
+          <input type="hidden" name="modulepart" value="'.dol_escape_htmltag($modulepart).'" />
+	      <input type="hidden" name="id" value="'.dol_escape_htmltag($id).'" />
 	      <br>
 	      <input type="submit" id="submitcrop" name="submitcrop" class="button" value="'.dol_escape_htmltag($langs->trans("Recenter")).'" />
 	      &nbsp;