Vulnerability-Lookup

CVE-2026-47721 (GCVE-0-2026-47721)

Vulnerability from cvelistv5 – Published: 2026-08-18 20:00 – Updated: 2026-08-19 15:21

Title

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

Summary

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.

Severity

6.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-19 15:21 UTC

CWE

CWE-862 - Missing Authorization

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/frangoteam/FUXA/security/advis…	x_refsource_CONFIRM
https://github.com/frangoteam/FUXA/pull/2345	x_refsource_MISC
https://github.com/frangoteam/FUXA/commit/3c945a0…	x_refsource_MISC
https://github.com/frangoteam/FUXA/releases/tag/v1.3.2	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
frangoteam	FUXA	Affected: < 1.3.2	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-47721",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2026-08-19T15:21:25.802999Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2026-08-19T15:21:35.696Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
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        {
          "product": "FUXA",
          "vendor": "frangoteam",
          "versions": [
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          "value": "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\u0027s session ends. This issue is fixed in version 1.3.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
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      "providerMetadata": {
        "dateUpdated": "2026-08-18T20:00:19.405Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/frangoteam/FUXA/security/advisories/GHSA-8ghr-w65f-j3qr",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/frangoteam/FUXA/security/advisories/GHSA-8ghr-w65f-j3qr"
        },
        {
          "name": "https://github.com/frangoteam/FUXA/pull/2345",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/frangoteam/FUXA/pull/2345"
        },
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/frangoteam/FUXA/commit/3c945a03f9942fd45a793ab7e3c2d1f1b15b93bf"
        },
        {
          "name": "https://github.com/frangoteam/FUXA/releases/tag/v1.3.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/frangoteam/FUXA/releases/tag/v1.3.2"
        }
      ],
      "source": {
        "advisory": "GHSA-8ghr-w65f-j3qr",
        "discovery": "UNKNOWN"
      },
      "title": "FUXA: Scheduler API missing admin check enables operator-to-admin escalation via scheduled device actions"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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    "datePublished": "2026-08-18T20:00:19.405Z",
    "dateReserved": "2026-05-19T21:29:25.482Z",
    "dateUpdated": "2026-08-19T15:21:35.696Z",
    "state": "PUBLISHED"
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      "epss": "0.00318",
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    },
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  }
}

FKIE_CVE-2026-47721

Vulnerability from fkie_nvd - Published: 2026-08-18 20:17 - Updated: 2026-08-19 16:17

Severity

6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Summary

References

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

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "FUXA",
          "vendor": "frangoteam",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.3.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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\u0027s session ends. This issue is fixed in version 1.3.2."
    }
  ],
  "id": "CVE-2026-47721",
  "lastModified": "2026-08-19T16:17:12.983",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-47721",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-19T15:21:25.802999Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-18T20:17:15.383",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/frangoteam/FUXA/commit/3c945a03f9942fd45a793ab7e3c2d1f1b15b93bf"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/frangoteam/FUXA/pull/2345"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/frangoteam/FUXA/releases/tag/v1.3.2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/frangoteam/FUXA/security/advisories/GHSA-8ghr-w65f-j3qr"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-8GHR-W65F-J3QR

Vulnerability from github – Published: 2026-06-08 23:07 – Updated: 2026-06-08 23:07

Summary

FUXA's scheduler API missing admin check enables operator-to-admin escalation via scheduled device actions

Details

Summary

An authorization issue in the Scheduler API allowed authenticated non-admin users to create or modify scheduled actions that should be restricted to administrators.

Details

The Scheduler API did not correctly enforce administrator permissions when processing scheduler modifications.

As a result, authenticated users with non-administrative roles could create or modify scheduled actions that execute privileged operations, including device value changes and server-side script execution.

The issue was fixed in version 1.3.2 by enforcing the appropriate permission checks for scheduler modifications.

Impact

An operator-level user in FUXA reaches the PLC-write and server-side-script-execution surface that the platform otherwise restricts to administrators. In a SCADA deployment those two privileges cover setpoint control and the automation scripting engine. Alice schedules a job that rewrites a pump's enable tag, opens a safety interlock, or runs a project script that walks the device tree. The scheduled-action model extends the attack: Alice does not need to keep a session open for the action to fire, and a repeating schedule re-applies her changes every cycle even if an admin reverts them manually.

CVSS 3.1: AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L (Medium, 6.3). CWE-862.

Recommended Fix

Add authJwt.haveAdminPermission(permission) to both POST /api/scheduler and DELETE /api/scheduler, matching every other write endpoint that reaches runtime.devices.setTagValue or runtime.scriptsMgr.runScript.

schedulerApp.post("/api/scheduler", secureFnc, function(req, res) {
    if (res.statusCode === 403) {
        runtime.logger.error("api post scheduler: Tocken Expired");
        return;
    }
    const permission = checkGroupsFnc(req);
    const isGuest = authJwt.isGuestUser(req.userId, req.userGroups);
    if (runtime.settings?.secureEnabled && (isGuest || !authJwt.haveAdminPermission(permission))) {
        res.status(401).json({error:"unauthorized_error", message: "Unauthorized!"});
        runtime.logger.error("api post scheduler: admin permission required");
        return;
    }
    // ... rest unchanged ...
});

Apply the same change to the delete handler at server/api/scheduler/index.js:102-112. As defense in depth, the scheduler service should also validate each deviceActions entry against the creator's stored groups before execution (e.g., reject onRunScript on any scheduler whose author is not an admin at execution time).

A fix is available at https://github.com/frangoteam/FUXA/releases/tag/v1.3.2.

Found by aisafe.io

Severity

6.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "fuxa-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.1.14-1243"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-47721"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-08T23:07:02Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nAn authorization issue in the Scheduler API allowed authenticated non-admin users to create or modify scheduled actions that should be restricted to administrators.\n\n## Details\n\nThe Scheduler API did not correctly enforce administrator permissions when processing scheduler modifications.\n\nAs a result, authenticated users with non-administrative roles could create or modify scheduled actions that execute privileged operations, including device value changes and server-side script execution.\n\nThe issue was fixed in version 1.3.2 by enforcing the appropriate permission checks for scheduler modifications.\n\n\n## Impact\n\nAn operator-level user in FUXA reaches the PLC-write and server-side-script-execution surface that the platform otherwise restricts to administrators. In a SCADA deployment those two privileges cover setpoint control and the automation scripting engine. Alice schedules a job that rewrites a pump\u0027s enable tag, opens a safety interlock, or runs a project script that walks the device tree. The scheduled-action model extends the attack: Alice does not need to keep a session open for the action to fire, and a repeating schedule re-applies her changes every cycle even if an admin reverts them manually.\n\n**CVSS 3.1**: `AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L` (Medium, 6.3). CWE-862.\n\n## Recommended Fix\n\nAdd `authJwt.haveAdminPermission(permission)` to both `POST /api/scheduler` and `DELETE /api/scheduler`, matching every other write endpoint that reaches `runtime.devices.setTagValue` or `runtime.scriptsMgr.runScript`.\n\n```javascript\nschedulerApp.post(\"/api/scheduler\", secureFnc, function(req, res) {\n    if (res.statusCode === 403) {\n        runtime.logger.error(\"api post scheduler: Tocken Expired\");\n        return;\n    }\n    const permission = checkGroupsFnc(req);\n    const isGuest = authJwt.isGuestUser(req.userId, req.userGroups);\n    if (runtime.settings?.secureEnabled \u0026\u0026 (isGuest || !authJwt.haveAdminPermission(permission))) {\n        res.status(401).json({error:\"unauthorized_error\", message: \"Unauthorized!\"});\n        runtime.logger.error(\"api post scheduler: admin permission required\");\n        return;\n    }\n    // ... rest unchanged ...\n});\n```\n\nApply the same change to the delete handler at `server/api/scheduler/index.js:102-112`. As defense in depth, the scheduler service should also validate each `deviceActions` entry against the creator\u0027s stored groups before execution (e.g., reject `onRunScript` on any scheduler whose author is not an admin at execution time).\n\n---\nA fix is available at https://github.com/frangoteam/FUXA/releases/tag/v1.3.2.\n\n---\n*Found by [aisafe.io](https://aisafe.io)*",
  "id": "GHSA-8ghr-w65f-j3qr",
  "modified": "2026-06-08T23:07:02Z",
  "published": "2026-06-08T23:07:02Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/frangoteam/FUXA/security/advisories/GHSA-8ghr-w65f-j3qr"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/frangoteam/FUXA"
    },
    {
      "type": "WEB",
      "url": "https://github.com/frangoteam/FUXA/releases/tag/v1.3.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "FUXA\u0027s scheduler API missing admin check enables operator-to-admin escalation via scheduled device actions"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-47721 (GCVE-0-2026-47721)

FKIE_CVE-2026-47721

GHSA-8GHR-W65F-J3QR

Summary

Details

Impact

Recommended Fix

Tags

Sightings

Nomenclature