Vulnerability-Lookup

CVE-2026-43980 (GCVE-0-2026-43980)

Vulnerability from cvelistv5 – Published: 2026-08-21 21:17 – Updated: 2026-08-24 20:10

Title

Malla: Stored XSS via Meshtastic node names in multiple frontend pages

Summary

Malla is a web analyzer for Meshtastic networks based on MQTT data. Prior to commit 4086e2b5f61615a813b70b25bc76095083552135, code names (long_name, short_name) received via MQTT are stored in SQLite without sanitization and rendered into the DOM without escaping. Any participant on a public Meshtastic MQTT broker can set a malicious node name that executes JavaScript in the browser of every Malla dashboard visitor. Commit 4086e2b5f61615a813b70b25bc76095083552135 fixes the issue.

Severity

6.3 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 20:10 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/zenitraM/malla/security/adviso…	x_refsource_CONFIRM
https://github.com/zenitraM/malla/commit/4086e2b5…	x_refsource_MISC
https://github.com/pypa/advisory-database/tree/ma…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
zenitraM	malla	Affected: < 4086e2b5f61615a813b70b25bc76095083552135	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-43980",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-24T20:10:26.577504Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-24T20:10:33.215Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "malla",
          "vendor": "zenitraM",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4086e2b5f61615a813b70b25bc76095083552135"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Malla is a web analyzer for Meshtastic networks based on MQTT data. Prior to commit 4086e2b5f61615a813b70b25bc76095083552135, code names (long_name, short_name) received via MQTT are stored in SQLite without sanitization and rendered into the DOM without escaping. Any participant on a public Meshtastic MQTT broker can set a malicious node name that executes JavaScript in the browser of every Malla dashboard visitor. Commit 4086e2b5f61615a813b70b25bc76095083552135 fixes the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-21T21:17:45.430Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm"
        },
        {
          "name": "https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135"
        },
        {
          "name": "https://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml"
        }
      ],
      "source": {
        "advisory": "GHSA-ch57-39q2-4crm",
        "discovery": "UNKNOWN"
      },
      "title": "Malla: Stored XSS via Meshtastic node names in multiple frontend pages"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-43980",
    "datePublished": "2026-08-21T21:17:45.430Z",
    "dateReserved": "2026-05-04T20:24:31.916Z",
    "dateUpdated": "2026-08-24T20:10:33.215Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-43980",
      "date": "2026-09-04",
      "epss": "0.00184",
      "percentile": "0.08014"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-43980\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-08-21T22:16:37.563\",\"lastModified\":\"2026-08-24T21:16:52.117\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Malla is a web analyzer for Meshtastic networks based on MQTT data. Prior to commit 4086e2b5f61615a813b70b25bc76095083552135, code names (long_name, short_name) received via MQTT are stored in SQLite without sanitization and rendered into the DOM without escaping. Any participant on a public Meshtastic MQTT broker can set a malicious node name that executes JavaScript in the browser of every Malla dashboard visitor. Commit 4086e2b5f61615a813b70b25bc76095083552135 fixes the issue.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"zenitraM\",\"product\":\"malla\",\"versions\":[{\"version\":\"\u003c 4086e2b5f61615a813b70b25bc76095083552135\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L\",\"baseScore\":6.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.8,\"impactScore\":3.4}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-24T20:10:26.577504Z\",\"id\":\"CVE-2026-43980\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"references\":[{\"url\":\"https://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-43980\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-24T20:10:26.577504Z\"}}}], \"references\": [{\"url\": \"https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-24T20:10:12.690Z\"}}], \"cna\": {\"title\": \"Malla: Stored XSS via Meshtastic node names in multiple frontend pages\", \"source\": {\"advisory\": \"GHSA-ch57-39q2-4crm\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"LOW\"}}], \"affected\": [{\"vendor\": \"zenitraM\", \"product\": \"malla\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 4086e2b5f61615a813b70b25bc76095083552135\"}]}], \"references\": [{\"url\": \"https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm\", \"name\": \"https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135\", \"name\": \"https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml\", \"name\": \"https://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Malla is a web analyzer for Meshtastic networks based on MQTT data. Prior to commit 4086e2b5f61615a813b70b25bc76095083552135, code names (long_name, short_name) received via MQTT are stored in SQLite without sanitization and rendered into the DOM without escaping. Any participant on a public Meshtastic MQTT broker can set a malicious node name that executes JavaScript in the browser of every Malla dashboard visitor. Commit 4086e2b5f61615a813b70b25bc76095083552135 fixes the issue.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-08-21T21:17:45.430Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-43980\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-24T20:10:33.215Z\", \"dateReserved\": \"2026-05-04T20:24:31.916Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-08-21T21:17:45.430Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-43980

Vulnerability from fkie_nvd - Published: 2026-08-21 22:16 - Updated: 2026-08-24 21:16

Severity

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

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml
	security-advisories@github.com	https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135
	security-advisories@github.com	https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "malla",
          "vendor": "zenitraM",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4086e2b5f61615a813b70b25bc76095083552135"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Malla is a web analyzer for Meshtastic networks based on MQTT data. Prior to commit 4086e2b5f61615a813b70b25bc76095083552135, code names (long_name, short_name) received via MQTT are stored in SQLite without sanitization and rendered into the DOM without escaping. Any participant on a public Meshtastic MQTT broker can set a malicious node name that executes JavaScript in the browser of every Malla dashboard visitor. Commit 4086e2b5f61615a813b70b25bc76095083552135 fixes the issue."
    }
  ],
  "id": "CVE-2026-43980",
  "lastModified": "2026-08-24T21:16:52.117",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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-2026-43980",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-24T20:10:26.577504Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-21T22:16:37.563",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-CH57-39Q2-4CRM

Vulnerability from github – Published: 2026-06-03 21:06 – Updated: 2026-06-03 21:06

Summary

malla: Stored XSS via Meshtastic node names in multiple frontend pages

Details

Node names (long_name, short_name) received via MQTT are stored in SQLite without sanitization and rendered into the DOM without escaping. Any participant on a public Meshtastic MQTT broker can set a malicious node name that executes JavaScript in the browser of every Malla dashboard visitor.

Affected files:

src/malla/templates/traceroute_graph.html (line ~832)
src/malla/templates/map.html (lines ~945, 1078)
src/malla/templates/packet_detail.html (lines ~1402, 1452)
src/malla/static/js/relay_node_analysis.js (line ~124)

Steps to reproduce

Publish a Meshtastic NODEINFO_APP packet to any public MQTT broker with long_name set to a HTML entity i.e <img src=x onerror=alert(1)>
Wait for malla-capture to store it
Open the dashboard

Impact

Allows unauthenticated remote attackers to execute arbitrary JavaScript in the browser, such as:

Phishing overlays
Force redirect to malicious websites
Injection of arbitrary third-party scripts (no CSP restrictions)
Browser resource abuse
Persistent dashboard denial of service

Severity

6.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "malla"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.1.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-43980"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-03T21:06:27Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "Node names (long_name, short_name) received via MQTT are stored in SQLite without sanitization and rendered into the DOM without escaping.\nAny participant on a public Meshtastic MQTT broker can set a malicious node name that executes JavaScript in the browser of every Malla dashboard visitor.\n\nAffected files:\n\n - src/malla/templates/traceroute_graph.html (line ~832)\n - src/malla/templates/map.html (lines ~945, 1078)\n - src/malla/templates/packet_detail.html (lines ~1402, 1452)\n - src/malla/static/js/relay_node_analysis.js (line ~124)\n\nSteps to reproduce\n\n 1. Publish a Meshtastic NODEINFO_APP packet to any public MQTT broker with long_name set to a HTML entity i.e `\u003cimg src=x onerror=alert(1)\u003e`\n 2. Wait for malla-capture to store it\n 3. Open the dashboard\n\nImpact\n\nAllows unauthenticated remote attackers to execute arbitrary JavaScript in the browser, such as: \n\n - Phishing overlays\n - Force redirect to malicious websites\n - Injection of arbitrary third-party scripts (no CSP restrictions)\n - Browser resource abuse \n - Persistent dashboard denial of service",
  "id": "GHSA-ch57-39q2-4crm",
  "modified": "2026-06-03T21:06:27Z",
  "published": "2026-06-03T21:06:27Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/zenitraM/malla"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "malla: Stored XSS via Meshtastic node names in multiple frontend pages"
}

PYSEC-2026-2618

Vulnerability from pysec - Published: 2026-07-13 15:46 - Updated: 2026-07-13 16:04

Details

Affected files:

src/malla/templates/traceroute_graph.html (line ~832)
src/malla/templates/map.html (lines ~945, 1078)
src/malla/templates/packet_detail.html (lines ~1402, 1452)
src/malla/static/js/relay_node_analysis.js (line ~124)

Steps to reproduce

Publish a Meshtastic NODEINFO_APP packet to any public MQTT broker with long_name set to a HTML entity i.e <img src=x onerror=alert(1)>
Wait for malla-capture to store it
Open the dashboard

Impact

Allows unauthenticated remote attackers to execute arbitrary JavaScript in the browser, such as:

Phishing overlays
Force redirect to malicious websites
Injection of arbitrary third-party scripts (no CSP restrictions)
Browser resource abuse
Persistent dashboard denial of service

Severity

6.3 (Medium)


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

Impacted products

Name	purl
malla	pkg:pypi/malla

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "malla",
        "purl": "pkg:pypi/malla"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.1.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.0",
        "0.1.1",
        "0.1.2",
        "0.1.3",
        "0.1.4",
        "0.1.5",
        "0.1.6",
        "0.1.7"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-43980",
    "GHSA-ch57-39q2-4crm"
  ],
  "details": "Node names (long_name, short_name) received via MQTT are stored in SQLite without sanitization and rendered into the DOM without escaping.\nAny participant on a public Meshtastic MQTT broker can set a malicious node name that executes JavaScript in the browser of every Malla dashboard visitor.\n\nAffected files:\n\n - src/malla/templates/traceroute_graph.html (line ~832)\n - src/malla/templates/map.html (lines ~945, 1078)\n - src/malla/templates/packet_detail.html (lines ~1402, 1452)\n - src/malla/static/js/relay_node_analysis.js (line ~124)\n\nSteps to reproduce\n\n 1. Publish a Meshtastic NODEINFO_APP packet to any public MQTT broker with long_name set to a HTML entity i.e `\u003cimg src=x onerror=alert(1)\u003e`\n 2. Wait for malla-capture to store it\n 3. Open the dashboard\n\nImpact\n\nAllows unauthenticated remote attackers to execute arbitrary JavaScript in the browser, such as: \n\n - Phishing overlays\n - Force redirect to malicious websites\n - Injection of arbitrary third-party scripts (no CSP restrictions)\n - Browser resource abuse \n - Persistent dashboard denial of service",
  "id": "PYSEC-2026-2618",
  "modified": "2026-07-13T16:04:45.989037Z",
  "published": "2026-07-13T15:46:14.341406Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/zenitraM/malla"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/malla"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-ch57-39q2-4crm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43980"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "malla: Stored XSS via Meshtastic node names in multiple frontend pages"
}

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-2026-43980 (GCVE-0-2026-43980)

FKIE_CVE-2026-43980

GHSA-CH57-39Q2-4CRM

PYSEC-2026-2618

Tags

Sightings

Nomenclature