CVE-2026-74803

CRITICAL CVSS 4.0: 10.0 EPSS 0.31%
Updated Aug 21, 2026
Joomla
Parameter Value
CVSS 10.0 (CRITICAL)
Type CWE-434 (Unrestricted File Upload)
Vendor Joomla
Public PoC No

Joomla Extension - yootheme.com - Unauthenticated arbitrary file upload in Zoo < 4.1.64 - The image element accepts arbitrary files when the client-supplied Content-Type falls within the image MIME group.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Vulnerable Products

yootheme.com:zoo extension for joomla