CVE-2026-78078

Joomla Extension - joomshaper.com - Privileged File Upload Bypass via Content Spoofing in Helix Ultimate < 2.2.10

State: Published
Severity: 8.9 High
Published: Aug 31, 2026
Updated: Sep 1, 2026
Reserved: Aug 22, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	8.9 High	CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H	Joomla

Weaknesses

CWE-434 Unrestricted Upload of File with Dangerous Type

Affected Products

Product	Versions
Helix Ultimate extension for Joomlajoomshaper.com	1.0-2.2.9Affected

References

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

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