CVE-2026-47720

MEDIUM 5.3

FUXA: SQL injection in TDengine DAQ connector via backslash bypass of escapeTdString

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. Prior to 1.3.2, the TDengine DAQ storage connector's escapeTdString function in server/runtime/storage/tdengine/index.js doubles single quotes but does not escape backslashes. A remote unauthenticated attacker can submit a crafted sids tag identifier through GET /api/daq or the Socket.IO DAQ_QUERY event so TDengine interprets the backslash and quote sequence as SQL syntax. The injected query can return every row from fuxa.meters, exposing historical PLC tag values, device identifiers, and device names even when FUXA authentication is enabled. This issue is fixed in version 1.3.2.

CWE	CWE-89
Vendor	frangoteam
Product	fuxa
Published	Aug 18, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

frangoteam / FUXA

< 1.3.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/frangoteam/FUXA/security/advisories/GHSA-h9fj-c2qr-76g2 github.com: https://github.com/frangoteam/FUXA/pull/2343 github.com: https://github.com/frangoteam/FUXA/commit/b78f6159d02a56ce5ff48207feb936afb3534fc8 github.com: https://github.com/frangoteam/FUXA/releases/tag/v1.3.2