include/utils/ListViewUtils.php in vtiger CRM before 5.1.0 allows remote authenticated users to bypass intended access restrictions and read the (1) visibility, (2) location, and (3) recurrence fields of a calendar via a custom view.
The report module in vtiger CRM before 5.0.3 does not properly apply security rules, which allows remote authenticated users to read arbitrary private module entries.
Directory traversal vulnerability in kcfinder/browse.php in Vtiger CRM before 6.0.0 Security patch 1 allows remote authenticated users to read arbitrary files via a .. (dot dot) in the file parameter in a download action. NOTE: it is likely that this issue is actually in the KCFinder third-party component, and it affects additional products besides Vtiger CRM.