CVE-2024-21728: Smartcalc Osticky

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

An Open Redirect vulnerability was found in osTicky2 below 2.2.8. osTicky (osTicket Bridge) by SmartCalc is a Joomla 3.x extension that provides Joomla fronted integration with osTicket, a popular Support ticket system. The Open Redirect vulnerability allows attackers to control the return parameter in the URL to a base64 malicious URL.

Affected products

• Smartcalc Osticky: before 2.2.8 (fixed in 2.2.8)

Published 2024-02-15. Last modified 2026-06-17.