diff --git a/application/dashboard.class.inc.php b/application/dashboard.class.inc.php
index 32c4b8dde..6747d7872 100644
--- a/application/dashboard.class.inc.php
+++ b/application/dashboard.class.inc.php
@@ -1478,6 +1478,29 @@ JS
 		return $this->sDefinitionFile;
 	}
 
+	/**
+	 * @param string $sDashboardFileRelative can also be an absolute path (compatibility with old URL)
+	 *
+	 * @return string full path to the Dashboard file
+	 * @throws \SecurityException if path isn't under approot
+	 * @uses utils::RealPath()
+	 * @since 2.7.8 3.0.3 3.1.0 N°4449 remove FPD
+	 */
+	public static function GetDashboardFileFromRelativePath($sDashboardFileRelative)
+	{
+		if (utils::RealPath($sDashboardFileRelative, APPROOT)) {
+			// compatibility with old URL containing absolute path !
+			return $sDashboardFileRelative;
+		}
+
+		$sDashboardFile = APPROOT.$sDashboardFileRelative;
+		if (false === utils::RealPath($sDashboardFile, APPROOT)) {
+			throw new SecurityException('Invalid dashboard file !');
+		}
+
+		return $sDashboardFile;
+	}
+
 	/**
 	 * @param string $sDefinitionFile
 	 */
diff --git a/application/utils.inc.php b/application/utils.inc.php
index 9fdb7abe5..95b91f306 100644
--- a/application/utils.inc.php
+++ b/application/utils.inc.php
@@ -1329,19 +1329,19 @@ class utils
 				$oDashboard = $param;
 				$sDashboardId = $oDashboard->GetId();
 				$sDashboardFile = $oDashboard->GetDefinitionFile();
+				$sDashboardFileRelative = utils::LocalPath($sDashboardFile);
 				$sDlgTitle = addslashes(Dict::S('UI:ImportDashboardTitle'));
 				$sDlgText = addslashes(Dict::S('UI:ImportDashboardText'));
 				$sCloseBtn = addslashes(Dict::S('UI:Button:Cancel'));
-				$sDashboardFileJS = addslashes($sDashboardFile);
-				$sDashboardFileURL = urlencode($sDashboardFile);
+				$sDashboardFileJS = addslashes($sDashboardFileRelative);
+				$sDashboardFileURL = urlencode($sDashboardFileRelative);
 				$sUploadDashboardTransactId = utils::GetNewTransactionId();
 				$aResult = array(
 					new SeparatorPopupMenuItem(),
 					new URLPopupMenuItem('UI:ExportDashboard', Dict::S('UI:ExportDashBoard'), utils::GetAbsoluteUrlAppRoot().'pages/ajax.render.php?operation=export_dashboard&id='.$sDashboardId.'&file='.$sDashboardFileURL),
 					new JSPopupMenuItem('UI:ImportDashboard', Dict::S('UI:ImportDashBoard'), "UploadDashboard({dashboard_id: '$sDashboardId', file: '$sDashboardFileJS', title: '$sDlgTitle', text: '$sDlgText', close_btn: '$sCloseBtn', transaction: '$sUploadDashboardTransactId' })"),
 				);
-				if ($oDashboard->GetReloadURL())
-				{
+				if ($oDashboard->GetReloadURL()) {
 					$aResult[] = new SeparatorPopupMenuItem();
 					$aResult[] = new URLPopupMenuItem('UI:Menu:PrintableVersion', Dict::S('UI:Menu:PrintableVersion'), $oDashboard->GetReloadURL().'&printable=1', '_blank');
 				}
diff --git a/pages/ajax.render.php b/pages/ajax.render.php
index 17a666c0a..21e9520e0 100644
--- a/pages/ajax.render.php
+++ b/pages/ajax.render.php
@@ -1128,11 +1128,13 @@ try
 
 		case 'export_dashboard':
 			$sDashboardId = utils::ReadParam('id', '', false, 'raw_data');
-			$sDashboardFile = utils::ReadParam('file', '', false, 'raw_data');
+			$sDashboardFileRelative = utils::ReadParam('file', '', false, 'raw_data');
+
+			$sDashboardFile = RuntimeDashboard::GetDashboardFileFromRelativePath($sDashboardFileRelative);
+
 			$oKPI = new ExecutionKPI();
 			$oDashboard = RuntimeDashboard::GetDashboard($sDashboardFile, $sDashboardId);
-			if (!is_null($oDashboard))
-			{
+			if (!is_null($oDashboard)) {
 				$oPage->TrashUnexpectedOutput();
 				$oPage->SetContentType('text/xml');
 				$oPage->SetContentDisposition('attachment', 'dashboard_'.$oDashboard->GetTitle().'.xml');
@@ -1143,18 +1145,18 @@ try
 
 		case 'import_dashboard':
 			$sTransactionId = utils::ReadParam('transaction_id', '', false, 'transaction_id');
-			if (!utils::IsTransactionValid($sTransactionId, true))
-			{
+			if (!utils::IsTransactionValid($sTransactionId, true)) {
 				throw new SecurityException('ajax.render.php import_dashboard : invalid transaction_id');
 			}
 			$sDashboardId = utils::ReadParam('id', '', false, 'raw_data');
-			$sDashboardFile = utils::ReadParam('file', '', false, 'raw_data');
+			$sDashboardFileRelative = utils::ReadParam('file', '', false, 'raw_data');
+
+			$sDashboardFile = RuntimeDashboard::GetDashboardFileFromRelativePath($sDashboardFileRelative);
+
 			$oDashboard = RuntimeDashboard::GetDashboard($sDashboardFile, $sDashboardId);
 			$aResult = array('error' => '');
-			if (!is_null($oDashboard))
-			{
-				try
-				{
+			if (!is_null($oDashboard)) {
+				try {
 					$oDoc = utils::ReadPostedDocument('dashboard_upload_file');
 					$oDashboard->FromXml($oDoc->GetData());
 					$oDashboard->Save();