Cross-site request forgery (CSRF) vulnerability in the RSS module in vtiger CRM 5.0.4 allows remote attackers to hijack the authentication of Admin users for requests that modify the news feed system via the rssurl parameter in a Save action to index.php.

The saveForwardAttachments procedure in the Compose Mail functionality in vtiger CRM 5.0.4 allows remote authenticated users to execute arbitrary code by composing an e-mail message with an attachment filename ending in (1) .php in installations based on certain Apache HTTP Server configurations, (2) .php. on Windows, or (3) .php/ on Linux, and then making a direct request to a certain pathname under storage/.

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.

Multiple cross-site scripting (XSS) vulnerabilities in vtiger CRM 5.0.4 allow remote attackers to inject arbitrary web script or HTML via (1) the parenttab parameter in an index action to the Products module, as reachable through index.php; (2) the user_password parameter in an Authenticate action to the Users module, as reachable through index.php; or (3) the query_string parameter in a UnifiedSearch action to the Home module, as reachable through index.php.

Vtiger CRM before 5.0.4 stores sensitive information under the web root with insufficient access control, which allows remote attackers to read mail merge templates via a direct request to the wordtemplatedownload directory.

vtiger CRM before 5.0.3, when a migrated build is used, allows remote authenticated users to read certain other users' calendar activities via a (1) home page or (2) event list view.

WordPlugin in the wordintegration component in vtiger CRM before 5.0.3 allows remote authenticated users to bypass field level security permissions and merge arbitrary fields in an Email template, as demonstrated by the fields in the Contact module.

The SOAP webservice in vtiger CRM before 5.0.3 does not ensure that authenticated accounts are active, which allows remote authenticated users with inactive accounts to access and modify data, as demonstrated by the Thunderbird plugin.

index.php in vtiger CRM before 5.0.3 allows remote authenticated users to obtain all users' names and e-mail addresses, and possibly change user settings, via a modified record parameter in a DetailView action to the Users module. NOTE: the vendor disputes the changing of settings, reporting that the attack vector results in a "You are not permitted to execute this Operation" error message in a 5.0.3 demo.

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.