diff --git a/application/loginwebpage.class.inc.php b/application/loginwebpage.class.inc.php
index e7119189f..dc414a4e2 100644
--- a/application/loginwebpage.class.inc.php
+++ b/application/loginwebpage.class.inc.php
@@ -239,8 +239,8 @@ EOF
 				{
 					case 'form':
 					// iTop standard mode: form based authentication
-					$sAuthUser = utils::ReadParam('auth_user', '', 'post');
-					$sAuthPwd = utils::ReadParam('auth_pwd', '', 'post');
+					$sAuthUser = utils::ReadPostedParam('auth_user', '');
+					$sAuthPwd = utils::ReadPostedParam('auth_pwd', '');
 					if ($sAuthUser != '')
 					{
 						$sLoginMode = 'form';
@@ -280,10 +280,10 @@ EOF
 
 					case 'url':
 					// Credentials passed directly in the url
-					$sAuthUser = utils::ReadParam('auth_user', '', 'get');
+					$sAuthUser = utils::ReadParam('auth_user', '');
 					if ($sAuthUser != '')
 					{
-						$sAuthPwd = utils::ReadParam('auth_pwd', '', 'post');
+						$sAuthPwd = utils::ReadParam('auth_pwd', '');
 						$sLoginMode = 'url';
 					}		
 					break;	
diff --git a/pages/UI.php b/pages/UI.php
index a365c0306..d54727164 100644
--- a/pages/UI.php
+++ b/pages/UI.php
@@ -1289,17 +1289,17 @@ EOF
 		break;
 	
 		case 'do_modify_links':
-		$aLinks = utils::ReadParam('linkId', array(), 'post');
-		$sLinksToRemove = trim(utils::ReadParam('linksToRemove', '', 'post'));
+		$aLinks = utils::ReadPostedParam('linkId', array());
+		$sLinksToRemove = trim(utils::ReadPostedParam('linksToRemove', ''));
 		$aLinksToRemove = array();
 		if (!empty($sLinksToRemove))
 		{
 			$aLinksToRemove = explode(' ', trim($sLinksToRemove));
 		}
-		$sClass = utils::ReadParam('class', '', 'post');
-		$sLinkageAtt = utils::ReadParam('linkage', '', 'post');
-		$iObjectId = utils::ReadParam('object_id', '', 'post');
-		$sLinkingAttCode = utils::ReadParam('linking_attcode', '', 'post');
+		$sClass = utils::ReadPostedParam('class', '');
+		$sLinkageAtt = utils::ReadPostedParam('linkage', '');
+		$iObjectId = utils::ReadPostedParam('object_id', '');
+		$sLinkingAttCode = utils::ReadPostedParam('linking_attcode', '');
 		$oMyChange = MetaModel::NewObject("CMDBChange");
 		$oMyChange->Set("date", time());
 		if (UserRights::IsImpersonated())
diff --git a/pages/ajax.render.php b/pages/ajax.render.php
index eb1b4aaef..f8b197108 100644
--- a/pages/ajax.render.php
+++ b/pages/ajax.render.php
@@ -49,9 +49,9 @@ switch($operation)
 	case 'addObjects':
 	require_once('../application/uilinkswizard.class.inc.php');
 	$sClass = utils::ReadParam('class', '', 'get');
-	$sLinkedClass = utils::ReadParam('linkedClass', '', 'get');
-	$sLinkageAttr = utils::ReadParam('linkageAttr', '', 'get');
-	$iObjectId = utils::ReadParam('objectId', '', 'get');
+	$sLinkedClass = utils::ReadParam('linkedClass', '');
+	$sLinkageAttr = utils::ReadParam('linkageAttr', '');
+	$iObjectId = utils::ReadParam('objectId', '');
 	$oLinksWizard = new UILinksWizard($sClass,  $sLinkageAttr, $iObjectId, $sLinkedClass);
 	$oLinksWizard->DisplayAddForm($oPage);
 	break;
@@ -72,13 +72,13 @@ switch($operation)
 	$sAttCode = utils::ReadParam('sAttCode', '');
 	$iInputId = utils::ReadParam('iInputId', '');
 	$sSuffix = utils::ReadParam('sSuffix', '');
-	$aLinkedObjectIds = utils::ReadParam('selectObject', array(), 'get');
+	$aLinkedObjectIds = utils::ReadParam('selectObject', array());
 	$oWidget = new UILinksWidget($sClass, $sAttCode, $iInputId, $sSuffix);
 	$oWidget->DoAddObjects($oPage, $aLinkedObjectIds);	
 	break;
 	
 	case 'wizard_helper_preview':
-	$sJson = utils::ReadParam('json_obj', '', 'post');
+	$sJson = utils::ReadParam('json_obj', '');
 	$oWizardHelper = WizardHelper::FromJSON($sJson);
 	$oObj = $oWizardHelper->GetTargetObject();
 	$oObj->DisplayBareProperties($oPage); 
@@ -323,8 +323,8 @@ switch($operation)
 	break;
 	
 	case 'set_pref':
-	$sCode = utils::ReadParam('code', '', 'post');
-	$sValue = utils::ReadParam('value', '', 'post');
+	$sCode = utils::ReadPostedParam('code', '');
+	$sValue = utils::ReadPostedParam('value', '');
 	appUserPreferences::SetPref($sCode, $sValue);
 	break;
 
diff --git a/pages/csvimport.php b/pages/csvimport.php
index a4a93aa07..420f2c6e1 100644
--- a/pages/csvimport.php
+++ b/pages/csvimport.php
@@ -815,7 +815,7 @@ EOF
 	 */
 	function SelectOptions(WebPage $oPage)
 	{
-		$sOperation = utils::ReadParam('operation', 'csv_data', 'post');
+		$sOperation = utils::ReadParam('operation', 'csv_data');
 		$sCSVData = '';
 		switch($sOperation)
 		{
@@ -828,7 +828,7 @@ EOF
 			break;
 			
 			default:
-			$sCSVData = utils::ReadParam('csvdata', '', 'post');
+			$sCSVData = utils::ReadPostedParam('csvdata', '');
 		}
 		$sEncoding = utils::ReadParam('encoding', 'UTF-8');
 	
diff --git a/portal/index.php b/portal/index.php
index 1070534b5..bc43b5f11 100644
--- a/portal/index.php
+++ b/portal/index.php
@@ -111,7 +111,7 @@ function SelectService($oP, $oUserOrg)
 	$oSet = new CMDBObjectSet($oSearch, array(), array('org_id' => $oUserOrg->GetKey()));
 	$oP->add("<div class=\"wizContainer\" id=\"form_select_service\">\n");
 	$oP->add("<h1 id=\"select_subcategory\">".Dict::S('Portal:SelectService')."</h1>\n");
-	$oP->add("<form id=\"request_form\" method=\"get\">\n");
+	$oP->add("<form action=\"../portal/index.php\" id=\"request_form\" method=\"get\">\n");
 	$oP->add("<table>\n");
 	while($oService = $oSet->Fetch())
 	{
@@ -249,7 +249,7 @@ function RequestCreationForm($oP, $oUserOrg)
 		}
 		$oP->add("<div class=\"wizContainer\" id=\"form_request_description\">\n");
 		$oP->add("<h1 id=\"title_request_form\">".Dict::S('Portal:DescriptionOfTheRequest')."</h1>\n");
-		$oP->add("<form id=\"request_form\" method=\"post\">\n");
+		$oP->add("<form action=\"../portal/index.php\" id=\"request_form\" method=\"post\">\n");
 		$oP->add("<table>\n");
 		$oP->details($aDetails);		
 		DumpHiddenParams($oP, $aList, $aParameters);
@@ -528,7 +528,7 @@ function DisplayRequestDetails($oP, UserRequest $oRequest)
 function DisplayResolvedRequestForm($oP, UserRequest $oRequest)
 {
 	$oP->add("<div class=\"wizContainer\" id=\"form_close_request\">\n");
-	$oP->add("<form id=\"request_form\" method=\"post\">\n");
+	$oP->add("<form action=\"../portal/index.php\" id=\"request_form\" method=\"post\">\n");
 	$oP->add('<table id="close_form_table"><tr><td style="vertical-align:top;">');
 	$oP->add("<h1 id=\"title_request_details\">".Dict::Format('Portal:TitleRequestDetailsFor_Request', $oRequest->GetName())."</h1>\n");
 	DisplayRequestDetails($oP, $oRequest);
@@ -562,9 +562,10 @@ function DisplayResolvedRequestForm($oP, UserRequest $oRequest)
 	$aStimuli = MetaModel::EnumStimuli($sClass);
 	$oP->add("<h1>".Dict::S('Portal:EnterYourCommentsOnTicket')."</h1>");
 	$oP->details($aDetails);
+	$oP->add("<input type=\"hidden\" name=\"id\" value=\"".$oRequest->GetKey()."\">");
 	$oP->add("<input type=\"hidden\" name=\"step\" value=\"2\">");
 	$oP->add("<input type=\"hidden\" name=\"transaction_id\" value=\"".utils::GetNewTransactionId()."\">\n");
-	$oP->add("<input type=\"hidden\" name=\"operation\" value=\"request_details\">");
+	$oP->add("<input type=\"hidden\" name=\"operation\" value=\"details\">");
 	$oP->p("<input type=\"submit\" value=\"".Dict::S('Portal:Button:CloseTicket')."\">");
 	$oP->add('</td></tr></table>');
 	$oP->add("</form>");
@@ -611,7 +612,7 @@ function DoCloseRequest($oP, UserRequest $oRequest)
 		if ( ($iExpectCode & (OPT_ATT_MUSTCHANGE | OPT_ATT_MUSTPROMPT)) ||
 			 (($iExpectCode & OPT_ATT_MANDATORY) && ($oRequest->Get($sAttCode) == '')) ) 
 		{
-			$value = utils::ReadParam('attr_'.$sAttCode, null, 'post');
+			$value = utils::ReadPostedParam('attr_'.$sAttCode, null);
 			if (!is_null($value))
 			{
 				$oRequest->Set($sAttCode, $value);
@@ -680,7 +681,7 @@ function RequestDetails(WebPage $oP, $id)
 	$oRequest = FindRequest($id);
 	if (!is_object($oRequest))
 	{
-		echo "Request not found ! count=".$oSet->Count();
+		echo "Request not found !";
 		return;
 	}
 	$iDefaultStep = 0;