Vulnerability-Lookup

GHSA-9C86-C5C2-55CR

Vulnerability from github – Published: 2026-08-05 15:32 – Updated: 2026-08-05 15:32

Details

OpenBK7231T's CHANNEL_SetLabel() (src/cmnds/cmd_channels.c) stores channel labels received via the MQTT SetChannelLabel command using strdup() with no HTML sanitization. CHANNEL_GetLabel() returns these labels unsanitized, and they are rendered via hprintf255() at 15+ locations in src/httpserver/http_fns.c with no HTML encoding. An attacker with MQTT broker access (commonly unauthenticated in real deployments) can set a channel label containing a payload that executes when any user views the device's web panel.

Severity

8.5 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-71274"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-05T13:24:51Z",
    "severity": "HIGH"
  },
  "details": "OpenBK7231T\u0027s CHANNEL_SetLabel() (src/cmnds/cmd_channels.c) stores channel labels received via the MQTT SetChannelLabel command using strdup() with no HTML sanitization. CHANNEL_GetLabel() returns these labels unsanitized, and they are rendered via hprintf255() at 15+ locations in src/httpserver/http_fns.c with no HTML encoding. An attacker with MQTT broker access (commonly unauthenticated in real deployments) can set a channel label containing a \u003cscript\u003e payload that executes when any user views the device\u0027s web panel.",
  "id": "GHSA-9c86-c5c2-55cr",
  "modified": "2026-08-05T15:32:20Z",
  "published": "2026-08-05T15:32:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-71274"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openshwprojects/OpenBK7231T_App"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-71274 (GCVE-0-2026-71274)

Vulnerability from cvelistv5 – Published: 2026-08-05 12:26 – Updated: 2026-08-05 15:56

Title

OpenBK7231T Stored XSS via Unsanitized MQTT-Set Channel Labels

Summary

OpenBK7231T's CHANNEL_SetLabel() (src/cmnds/cmd_channels.c) stores channel labels received via the MQTT SetChannelLabel command using strdup() with no HTML sanitization. CHANNEL_GetLabel() returns these labels unsanitized, and they are rendered via hprintf255() at 15+ locations in src/httpserver/http_fns.c with no HTML encoding. An attacker with MQTT broker access (commonly unauthenticated in real deployments) can set a channel label containing a <script> payload that executes when any user views the device's web panel.

Severity

8.5 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-79

Assigner

TuranSec

References

1 reference

URL	Tags
https://github.com/openshwprojects/OpenBK7231T_App

Impacted products

1 product

Vendor	Product	Version
openshwprojects	OpenBK7231T_App	Affected: 0 , ≤ * (custom)

Credits

Alibek Baxtiyorov

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JSON

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    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-71274",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-05T15:55:58.051783Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "OpenBK7231T_App",
          "programFiles": [
            "src/cmnds/cmd_channels.c",
            "src/httpserver/http_fns.c"
          ],
          "vendor": "openshwprojects",
          "versions": [
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              "status": "affected",
              "version": "0",
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      "credits": [
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          "type": "finder",
          "value": "Alibek Baxtiyorov"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenBK7231T\u0027s CHANNEL_SetLabel() (src/cmnds/cmd_channels.c) stores channel labels received via the MQTT SetChannelLabel command using strdup() with no HTML sanitization. CHANNEL_GetLabel() returns these labels unsanitized, and they are rendered via hprintf255() at 15+ locations in src/httpserver/http_fns.c with no HTML encoding. An attacker with MQTT broker access (commonly unauthenticated in real deployments) can set a channel label containing a \u003cscript\u003e payload that executes when any user views the device\u0027s web panel."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
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        {
          "url": "https://github.com/openshwprojects/OpenBK7231T_App"
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      ],
      "title": "OpenBK7231T Stored XSS via Unsanitized MQTT-Set Channel Labels"
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  "cveMetadata": {
    "assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
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    "datePublished": "2026-08-05T12:26:21.160Z",
    "dateReserved": "2026-08-05T12:23:34.967Z",
    "dateUpdated": "2026-08-05T15:56:05.627Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.2"
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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.

Action not permitted

GHSA-9C86-C5C2-55CR

CVE-2026-71274 (GCVE-0-2026-71274)

Tags

Sightings

Nomenclature