Vulnerability · Published Aug 19, 2026 · Assigned by Joomla
CVE-2026-74803Joomla Extension - yootheme.com - Unauthenticated arbitrary file upload in Zoo < 4.1.64
Critical 10.0
In plain English
A critical-severity unrestricted file upload in Zoo extension for Joomla from yootheme.com. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Severity (CVSS 4.0)10.0Critical
Exploit odds (30 days)0.4%top 62.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| yootheme.com | Zoo extension for Joomla | 1.0.0-4.1.63 |
Weakness: CWE-434 · 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
References
- https://www.yootheme.com/ product