HIGH 8.9 NVD

CVE-2026-78078

Joomla Extension - joomshaper.com - Privileged File Upload Bypass via Content Spoofing in Helix Ultimate < 2.2.10 - Image uploads previously validated only file

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.

References

https://www.joomshaper.com/joomla-templates/helixultimate

Published: 2026-08-31 · Source: NVD · Feed updated: 2026-08-31

This high severity vulnerability with a CVSS score of 8.9 was published on 2026-08-31 via NVD.

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