CVE-2026-78078 — Joomla Extension - joomshaper.com - Privileged File Upload Bypass via Content Spoofing in Helix Ultimate < 2.2.10
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 ba…
Published: 2026-08-31 · CVSS: 8.9 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7