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CVE-2026-47718

FUXA provides guest and invalid-token access to protected read APIs in secure mode

5.5 MediumFix available

FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. When secureEnabled=true, FUXA 1.3.0-2773 still allows guest and invalid-token requests to read project, alarms, and scheduler APIs. Version 1.3.1 fixes this issue.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.46%Up 0.4 points since Jun 12, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.5

FUXA provides guest and invalid-token access to protected read APIs in secure mode

FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. When secureEnabled=true, FUXA 1.3.0-2773 still allows guest and invalid-token requests to read project, alarms, and scheduler APIs. Version 1.3.1 fixes this issue.

Record
CVE-2026-47718
CVSS 4.0
5.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Weakness
CWE-287, CWE-862
Updated
2026-11-02
EUVDEUVD-2026-57691 5.5

FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. When secureEnabled=true, FUXA 1.3.0-2773 still allows guest and invalid-token requests to read project, alarms, and scheduler APIs. Version 1.3.1 fixes this issue.

Record
EUVD-2026-57691
CVSS 4.0
5.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Updated
2026-11-02
GitHub AdvisoriesGHSA-r9g5-7q8j-958c 5.5

FUXA provides guest and invalid-token access to protected read APIs in secure mode

Summary

When secureEnabled=true, FUXA 1.3.0-2773 still allows guest and invalid-token requests to read project, alarms, and scheduler APIs.

Details

In secure mode, requests with no token or an explicitly invalid token were still able to access protected read endpoints.

Confirmed behavior:

  • guest GET /api/project returned 200 OK
  • invalid-token requests to /api/project also returned successful responses containing project data
  • guest and invalid-token requests also returned 200 OK on:
    • /api/alarms
    • /api/scheduler

Relevant code paths identified during analysis:

  • server/api/jwt-helper.js
    • verifyToken() converts missing-token or invalid-token states into guest context instead of rejecting the request
  • server/api/projects/index.js
  • server/api/alarms/index.js
  • server/api/scheduler/index.js

These handlers accepted the guest context and returned sensitive data in secure mode.

PoC

Tested only against isolated local lab instances under the original tester's control. No production, customer, shared, or third-party systems were involved.

Reproduction:

  1. Start FUXA 1.3.0-2773.
  2. Set secureEnabled=true.
  3. Send unauthenticated requests to:
    • GET /api/project
    • GET /api/alarms
    • GET /api/scheduler?id=test
  4. Observe 200 OK responses.
  5. Send the same requests with an explicitly invalid x-access-token value.
  6. Observe the same successful responses.

The exact HTTP requests and local PoC script used for confirmation can be provided upon request.

Impact

This is an authentication/authorization weakness in secure mode.

Impact includes:

  • project metadata disclosure
  • alarms disclosure
  • scheduler information disclosure
  • assistance in reconnaissance/follow-on attacks

Operators who believe secure mode protects these APIs are impacted.

Record
GHSA-r9g5-7q8j-958c
CVSS 4.0
5.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Weakness
CWE-287, CWE-862
Updated
2026-11-02
NVD 5.5

FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. When secureEnabled=true, FUXA 1.3.0-2773 still allows guest and invalid-token requests to read project, alarms, and scheduler APIs. Version 1.3.1 fixes this issue.

Record
CVE-2026-47718
CVSS 4.0
5.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness
CWE-287, CWE-862
Updated
2026-11-02
OSV 5.5

FUXA provides guest and invalid-token access to protected read APIs in secure mode

FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. When secureEnabled=true, FUXA 1.3.0-2773 still allows guest and invalid-token requests to read project, alarms, and scheduler APIs. Version 1.3.1 fixes this issue.

Record
CVE-2026-47718
CVSS 4.0
5.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Weakness
CWE-287, CWE-862
Updated
2026-11-02
OSVGHSA-r9g5-7q8j-958c 5.5

FUXA provides guest and invalid-token access to protected read APIs in secure mode

Summary

When secureEnabled=true, FUXA 1.3.0-2773 still allows guest and invalid-token requests to read project, alarms, and scheduler APIs.

Details

In secure mode, requests with no token or an explicitly invalid token were still able to access protected read endpoints.

Confirmed behavior:

  • guest GET /api/project returned 200 OK
  • invalid-token requests to /api/project also returned successful responses containing project data
  • guest and invalid-token requests also returned 200 OK on:
    • /api/alarms
    • /api/scheduler

Relevant code paths identified during analysis:

  • server/api/jwt-helper.js
    • verifyToken() converts missing-token or invalid-token states into guest context instead of rejecting the request
  • server/api/projects/index.js
  • server/api/alarms/index.js
  • server/api/scheduler/index.js

These handlers accepted the guest context and returned sensitive data in secure mode.

PoC

Tested only against isolated local lab instances under the original tester's control. No production, customer, shared, or third-party systems were involved.

Reproduction:

  1. Start FUXA 1.3.0-2773.
  2. Set secureEnabled=true.
  3. Send unauthenticated requests to:
    • GET /api/project
    • GET /api/alarms
    • GET /api/scheduler?id=test
  4. Observe 200 OK responses.
  5. Send the same requests with an explicitly invalid x-access-token value.
  6. Observe the same successful responses.

The exact HTTP requests and local PoC script used for confirmation can be provided upon request.

Impact

This is an authentication/authorization weakness in secure mode.

Impact includes:

  • project metadata disclosure
  • alarms disclosure
  • scheduler information disclosure
  • assistance in reconnaissance/follow-on attacks

Operators who believe secure mode protects these APIs are impacted.

Record
GHSA-r9g5-7q8j-958c
CVSS 4.0
5.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Weakness
CWE-287, CWE-862
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
fuxa-server
npm
 1.3.0-2773 to 1.3.0-2773
1.3.1
fuxa-server
npm
 1.3.0-2773 up to 1.3.1
1.3.1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-47718 is a medium vulnerability (CVSS 5.5) in Frangoteam Fuxa, published May 28, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 39th percentile. Fixed in fuxa-server 1.3.1.

References

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