CVE-2026-78079: Joomshaper.com Helix Ultimate Extension For Joomla

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Joomla Extension - joomshaper.com - Open Redirect via Base64 Return Parameter in Helix Ultimate < 2.2.10 - Return redirect parameters accepted arbitrary Base64 strings without verifying whether the resolved target was an internal site URL via Uri::isInternal.

Affected products

• Joomshaper.com Helix Ultimate Extension For Joomla: version 1.0-2.2.9 only

Published 2026-08-31. Last modified 2026-08-31.