CVE-2011-4559: Vtiger CRM

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

SQL injection vulnerability in the Calendar module in vTiger CRM 5.2.1 and earlier allows remote attackers to execute arbitrary SQL commands via the onlyforuser parameter in an index action to index.php.

Affected products

• Vtiger Vtiger CRM: up to and including 5.2.1; version 1.0 only; version 2.0 only; version 2.0.1 only; version 2.1 only; version 3.0 only; …

Published 2011-11-28. Last modified 2026-06-16.