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CVE-2026-43947— FUXA Vulnerable to Unauthenticated Remote Code Execution via Script Test Mode Authorization Bypass

Quick assessment

Affected
frangoteam FUXA
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.

frangoteam FUXA是frangoteam团队开源的一个基于web的过程可视化软件。 frangoteam FUXA 1.3.0版本存在授权问题漏洞，该漏洞源于在POST /api/runscript端点授权检查不当，当请求设置test: true时，会编译并执行攻击者提供的代码而非存储脚本的代码，可能导致未经身份验证的攻击者知晓有效脚本ID和名称后通过测试模式执行任意代码。

CVSS 8.9 · High EPSS 0.91% · P58

Affected Version Matrix 1

VendorProduct Version RangeStatus
frangoteam FUXA = 1.3.0 affected
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I. Basic Information for CVE-2026-43947

Vulnerability Information
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Vulnerability Title
FUXA Vulnerable to Unauthenticated Remote Code Execution via Script Test Mode Authorization Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. Version 1.3.0 has an unauthenticated Remote Code Execution vulnerability when `secureEnabled` is set to `true`. The `POST /api/runscript` endpoint checks authorization against the stored script's permission by ID, but when `test: true` is set in the request, it compiles and executes attacker-supplied code instead of the stored script's code. An unauthenticated attacker who knows a valid script ID and name may execute arbitrary code via test mode if at least one server-side script exists and is accessible without restrictive permissions. Script IDs and names can be obtained through the unauthenticated information disclosure in `GET /api/project` (reported separately). The only prerequisite is that at least one server-side script exists in the project. Version 1.3.1 fixes the issue.
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:N/SI:N/SA:N/E:P
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
frangoteam FUXA 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
frangoteam FUXA是frangoteam团队开源的一个基于web的过程可视化软件。 frangoteam FUXA 1.3.0版本存在授权问题漏洞，该漏洞源于在POST /api/runscript端点授权检查不当，当请求设置test: true时，会编译并执行攻击者提供的代码而非存储脚本的代码，可能导致未经身份验证的攻击者知晓有效脚本ID和名称后通过测试模式执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
frangoteam FUXA = 1.3.0 -

II. Public POCs for CVE-2026-43947

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 6592 chars
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III. Intelligence Information for CVE-2026-43947

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Patches & Fixes for CVE-2026-43947 (2)

Vendor Advisories for CVE-2026-43947 (1)

Other References for CVE-2026-43947 (1)

Same Patch Batch · frangoteam · 2026-07-21 · 3 CVEs total

CVE-2026-43945 FUXA Vulnerable to Pre-auth RCE via Path Manipulation & Configuration Injection
CVE-2026-43946 FUXA has an unauthenticated arbitrary tag value disclosure via /api/getTagValue

IV. Related Vulnerabilities

Same product: FUXA
Same vendor: frangoteam
Same weakness: CWE-863

V. Comments for CVE-2026-43947

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