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

Quick assessment

Affected

yootheme.com Zoo extension for Joomla

Exploitation

Public or AI PoC available; prioritize validation

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Joomla 扩展 - yootheme.com - Zoo < 4.1.64 中的未授权任意文件上传漏洞 - 当客户端提供的 Content-Type 属于图像 MIME 类型组时，图像元素会接受任意文件。

CVSS 10.0 · Critical EPSS 0.31% · P24 Updated Aug 21, 2026

Possible ATT&CK Techniques 2 AI

T1190 · Exploit Public-Facing Application T1505.003 · Web Shell

Affected Version Matrix 1

Vendor	Product	Version Range	Status
yootheme.com	Zoo extension for Joomla	`1.0.0-4.1.63`	affected

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Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

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Vulnerability Title

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

Source: CVE Program / CVE List V5

Vulnerability 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.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

危险类型文件的不加限制上传

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
yootheme.com	Zoo extension for Joomla	1.0.0-4.1.63	-

II. Public POCs for CVE-2026-74803

#	POC Description	Source Link	Shenlong Link

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default-local-qwen3.6 · 10625 chars

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III. Intelligence Information for CVE-2026-74803

请登录查看更多情报信息。

Vendor Pages for CVE-2026-74803 (1)

🔗 YOOtheme Pro: The ultimate website builder for WordPress and Joomla product

https://www.cve.org/CVERecord?id=CVE-2026-74803

Same Patch Batch · yootheme.com · 2026-08-19 · 3 CVEs total

CVE-2026-74804	9.3 CRITICAL	Joomla Extension - yootheme.com - Unauthenticated SQL injection in Zoo < 4.1.64
CVE-2026-75114	5.1 MEDIUM	Joomla Extension - yootheme.com - Open redirect in CommentController::twitterAuthenticate(

IV. Related Vulnerabilities

Same product: Zoo extension for Joomla

Same vendor: yootheme.com

Same weakness: CWE-434

V. Comments for CVE-2026-74803

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Goal Reached Thanks to every supporter — we hit 100%!

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

Quick assessment

Possible ATT&CK Techniques 2 AI

Affected Version Matrix 1

I. Basic Information for CVE-2026-74803

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2026-74803

III. Intelligence Information for CVE-2026-74803

Vendor Pages for CVE-2026-74803 (1)

Same Patch Batch · yootheme.com · 2026-08-19 · 3 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2026-74803

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