Index: Classes/BackendUserInterface/WorkspaceSelectorToolbarItem.php
===================================================================
--- Classes/BackendUserInterface/WorkspaceSelectorToolbarItem.php	(revision 10669)
+++ Classes/BackendUserInterface/WorkspaceSelectorToolbarItem.php	(working copy)
@@ -62,7 +62,7 @@
 		$this->changeWorkspacePreview = t3lib_div::_GP('changeWorkspacePreview');
 
 		$pageRenderer = t3lib_div::makeInstance('t3lib_pageRenderer');
-		$this->backendReference->addJavaScript("TYPO3.Workspaces = { workspaceTitle : '" . tx_Workspaces_Service_Workspaces::getWorkspaceTitle($GLOBALS['BE_USER']->workspace) . "'};\n");
+		$this->backendReference->addJavaScript("TYPO3.Workspaces = { workspaceTitle : '" . htmlspecialchars(tx_Workspaces_Service_Workspaces::getWorkspaceTitle($GLOBALS['BE_USER']->workspace)) . "'};\n");
 	}
 
 	/**