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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-47720
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-18 20:17:15 UTC
Updated2026-08-19 13:17:45 UTC
DescriptionFUXA 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

EPSS: 0.004900000 probability, percentile 0.402010000 (date 2026-08-19)

Problem Types: CWE-89 | CWE-89 CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Frangoteam FUXA affected < 1.3.2 Not specified

References

ReferenceSourceLinkTags
github.com/frangoteam/FUXA/releases/tag/v1.3.2 [email protected] github.com
github.com/frangoteam/FUXA/commit/b78f6159d02a56ce5ff48207feb936afb3534fc8 [email protected] github.com
github.com/frangoteam/FUXA/security/advisories/GHSA-h9fj-c2qr-76g2 [email protected] github.com
github.com/frangoteam/FUXA/pull/2343 [email protected] github.com
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