CVE-2005-3820: Vtiger CRM

Medium severity, CVSS 6.4. EPSS: 2.7% chance of exploitation in the next 30 days.

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.

Affected products

• Vtiger Vtiger CRM: up to and including 4.2

Published 2005-11-26. Last modified 2026-06-16.