CVE-2026-74803 PUBLISHED

Joomla Extension - yootheme.com - Unauthenticated arbitrary file upload in Zoo < 4.1.64

Assigner: Joomla
Reserved: 16.08.2026 Published: 19.08.2026 Updated: 19.08.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 10

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	yootheme.com
Product	Zoo extension for Joomla
Versions	Default: unaffected Version 1.0.0-4.1.63 is affected

Credits

Phil Taylor, mysites.guru finder

References

https://www.yootheme.com/

Problem Types

CWE-434: Unrestricted Upload of File with Dangerous Type CWE