diff --git a/application/displayblock.class.inc.php b/application/displayblock.class.inc.php
index 5cb3db539..388b679ab 100644
--- a/application/displayblock.class.inc.php
+++ b/application/displayblock.class.inc.php
@@ -869,16 +869,16 @@ class MenuBlock extends DisplayBlock
 		{
 			case 0:
 			// No object in the set, the only possible action is "new"
-			$bIsModifyAllowed = UserRights::IsActionAllowed($sClass, UR_ACTION_MODIFY);
+			$bIsModifyAllowed = (!MetaModel::IsAbstract($sClass)) && UserRights::IsActionAllowed($sClass, UR_ACTION_MODIFY);
 			if ($bIsModifyAllowed) { $aActions[] = array ('label' => Dict::S('UI:Menu:New'), 'url' => "../page/$sUIPage?operation=new&class=$sClass&$sContext{$sDefault}"); }
 			break;
 			
 			case 1:
 			$oObj = $oSet->Fetch();
 			$id = $oObj->GetKey();
-			$bIsModifyAllowed = UserRights::IsActionAllowed($sClass, UR_ACTION_MODIFY, $oSet);
+			$bIsModifyAllowed = (!MetaModel::IsAbstract($sClass)) && UserRights::IsActionAllowed($sClass, UR_ACTION_MODIFY, $oSet);
 			$bIsDeleteAllowed = UserRights::IsActionAllowed($sClass, UR_ACTION_DELETE, $oSet);
-			$bIsBulkModifyAllowed = UserRights::IsActionAllowed($sClass, UR_ACTION_BULK_MODIFY, $oSet);
+			$bIsBulkModifyAllowed = (!MetaModel::IsAbstract($sClass)) && UserRights::IsActionAllowed($sClass, UR_ACTION_BULK_MODIFY, $oSet);
 			$bIsBulkDeleteAllowed = UserRights::IsActionAllowed($sClass, UR_ACTION_BULK_DELETE, $oSet);
 			// Just one object in the set, possible actions are "new / clone / modify and delete"
 			if (isset($aExtraParams['link_attr']))
@@ -927,8 +927,8 @@ class MenuBlock extends DisplayBlock
 			default:
 			// Check rights
 			// New / Modify
-			$bIsModifyAllowed = UserRights::IsActionAllowed($sClass, UR_ACTION_MODIFY, $oSet);
-			$bIsBulkModifyAllowed = UserRights::IsActionAllowed($sClass, UR_ACTION_BULK_MODIFY, $oSet);
+			$bIsModifyAllowed = (!MetaModel::IsAbstract($sClass)) && UserRights::IsActionAllowed($sClass, UR_ACTION_MODIFY, $oSet);
+			$bIsBulkModifyAllowed = (!MetaModel::IsAbstract($sClass)) && UserRights::IsActionAllowed($sClass, UR_ACTION_BULK_MODIFY, $oSet);
 			$bIsBulkDeleteAllowed = UserRights::IsActionAllowed($sClass, UR_ACTION_BULK_DELETE, $oSet);
 			if (isset($aExtraParams['link_attr']))
 			{
diff --git a/pages/csvimport.php b/pages/csvimport.php
index ddca29a4e..8ed3600b0 100644
--- a/pages/csvimport.php
+++ b/pages/csvimport.php
@@ -40,7 +40,8 @@ function GetClassesSelect($sName, $sDefaultValue, $iWidthPx, $iActionCode = null
 	$aValidClasses = array();
 	foreach(MetaModel::GetClasses('bizmodel') as $sClassName)
 	{
-		if (is_null($iActionCode) || UserRights::IsActionAllowed($sClassName, $iActionCode))
+		if ( (is_null($iActionCode) || UserRights::IsActionAllowed($sClassName, $iActionCode)) &&
+		     (!MetaModel::IsAbstract($sClassName)) )
 		{
 			$sSelected = ($sClassName == $sDefaultValue) ? " selected" : "";
 			$sDescription = MetaModel::GetClassDescription($sClassName);