CVE-2026-78078: Joomshaper.com Helix Ultimate Extension For Joomla

High severity, CVSS 8.9. EPSS: 0.4% chance of exploitation in the next 30 days.

Joomla Extension - joomshaper.com - Privileged File Upload Bypass via Content Spoofing in Helix Ultimate < 2.2.10 - Image uploads previously validated only file extension and basic size parameters. Non-image files disguised with raster extensions could be uploaded. Added strict MIME verification and GD binary raster decoding (imagecreatefromstring) to reject invalid/malformed images fail-closed.

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.