Multiple directory traversal vulnerabilities in index.php in vTiger CRM 4.2 and earlier allow remote attackers to read or include arbitrary files, an ultimately execute arbitrary PHP code, via .. (dot dot) and null byte ("%00") sequences in the (1) module parameter and (2) action parameter in the Leads module, as also demonstrated by injecting PHP code into log messages and accessing the log file.
Cross-site scripting (XSS) vulnerability in vTiger CRM 4.2 and earlier allows remote attackers to inject arbitrary web script or HTML via multiple vectors, including the account name.
Multiple SQL injection vulnerabilities in vTiger CRM 4.2 and earlier allow remote attackers to execute arbitrary SQL commands via the (1) username in the login form or (2) record parameter, as demonstrated in the EditView action for the Contacts module.
The Users module in vTiger CRM 4.2 and earlier allows remote attackers to execute arbitrary PHP code via an arbitrary file in the templatename parameter, which is passed to the eval function.