CVE-2026-74803: Joomla Extension - yootheme.com - Unauthenticated arbitrary file upload in Zoo < 4.1.64

Severity: critical (CVSS 10.0 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-19 · updated 2026-08-26
Weakness: CWE-434

Description

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.

Affected products

yootheme.com Zoo extension for Joomla: 1.0.0-4.1.63

References

https://www.yootheme.com/

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