CVE-2026-78078: CWE-434 Unrestricted Upload of File with Dangerous Type in joomshaper.com Helix Ultimate extension for Joomla
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.
CVE-2026-78078: CWE-434 Unrestricted Upload of File with Dangerous Type in joomshaper.com Helix Ultimate extension for Joomla
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.
CVSS v4.0
Score 8.9high
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-08-22T14:23:37.801Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a958ab8acd9273b492f0888
Added to database: 08/31/2026, 14:07:52 UTC
Last updated: 08/31/2026, 17:50:57 UTC
Views: 6
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