# CVE-2026-47720: frangoteam FUXA SQL injection in TDengine DAQ connector

Source: https://junglewise.ai/threats/cve-2026-47720-frangoteam-fuxa-sql-injection-in-tdengine-daq-connector  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-18. Updated: 2026-06-09  
License: CC BY 4.0 with a link back

CVE-2026-47720 · Severity: medium · CVSS 5.3 · Published 2026-08-18

FUXA, an open-source industrial web-based SCADA system, contains a security flaw in how it communicates with TDengine databases. An attacker can exploit this to bypass security filters and read historical data from connected industrial controllers (PLCs). This could result in the unauthorized exposure of sensitive operational data, including device names and recorded sensor values, without requiring a login.

Technologies: [Frangoteam FUXA](https://junglewise.ai/threats/technologies/fuxa), [fuxa-server (npm)](https://junglewise.ai/threats/technologies/fuxa-server). Vendors: [Frangoteam](https://junglewise.ai/threats/vendors/frangoteam), [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is CVE-2026-47720 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-47720 being exploited in the wild.

**How severe is CVE-2026-47720?** Medium severity, with a CVSS score of 5.3, published 18 August 2026.

**Which products and versions are affected?** Frangoteam FUXA <= 1.1.14-1243; fuxa-server (npm) <= 1.1.14-1243, SEMVER:introduced=0,last_affected=1.1.14-1243.

**Is there a fix for CVE-2026-47720?** A patch was published on 2026-06-08: Fix released in version 1.3.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-47720 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-47720?** Check whether you run Frangoteam FUXA or fuxa-server (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A SQL injection vulnerability exists in the TDengine DAQ storage connector within `server/runtime/storage/tdengine/index.js`. The `escapeTdString` function correctly doubles single quotes but fails to escape backslashes. Because TDengine's SQL parser interprets a backslash followed by a single quote as a literal quote, an attacker can provide a crafted payload (e.g., using `\'`) to break out of the string literal and append arbitrary SQL commands. This can be triggered via unauthenticated GET requests to `/api/daq` or through Socket.IO `DAQ_QUERY` events. The vulnerability allows unauthorized reading of the `fuxa.meters` table. The issue is fixed in version 1.3.2.

## Affected products

- frangoteam FUXA <= 1.1.14-1243

## Identifiers

- CVE-2026-47720
- GHSA-h9fj-c2qr-76g2

## Timeline

- 2026-05-29: disclosed: Initial disclosure to vendor
- 2026-06-08: advisory: GitHub Advisory published
- 2026-06-08: patched: Fix released in version 1.3.2

## References

- [https://api.github.com/users/adrgs](https://api.github.com/users/adrgs)
- [https://github.com/adrgs](https://github.com/adrgs)
- [https://api.github.com/users/adrgs/gists%7B/gist_id%7D](https://api.github.com/users/adrgs/gists%7B/gist_id%7D)
- [https://api.github.com/users/adrgs/repos](https://api.github.com/users/adrgs/repos)
- [https://avatars.githubusercontent.com/u/11564377?v=4](https://avatars.githubusercontent.com/u/11564377?v=4)
- [https://api.github.com/users/adrgs/events%7B/privacy%7D](https://api.github.com/users/adrgs/events%7B/privacy%7D)

## Related threats

- [FUXA authorization bypass in /api/runscript](https://junglewise.ai/threats/cve-2026-42949-a-authorization-bypass-vulnerability-exists-in-the-api-runscript)
- [FUXA /nodered authorization bypass to RCE](https://junglewise.ai/threats/cve-2026-42922-a-authorization-bypass-vulnerability-exists-in-the-nodered)
- [FUXA information disclosure in Node-RED scripts endpoint](https://junglewise.ai/threats/cve-2026-40063-a-information-disclosure-vulnerability-exists-in-the-nodered-fuxa)
- [FUXA unauthenticated information disclosure in Socket.IO handlers](https://junglewise.ai/threats/cve-2026-67440-fuxa-unauthenticated-information-disclosure-in-socket-io-handlers)
- [Frangoteam FUXA privilege escalation in Scheduler API](https://junglewise.ai/threats/cve-2026-47721-frangoteam-fuxa-privilege-escalation-in-scheduler-api)