CVE-2021-36603 - Vulnerability Details - OpenCVE

Cross Site Scripting (XSS) in Tasmota firmware 6.5.0 allows remote attackers to inject JavaScript code via a crafted string in the field "Friendly Name 1".

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Vendors	Products
Tasmota Project	Tasmota

Configuration 1 [-]

cpe:2.3:o:tasmota_project:tasmota:6.5.0:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://github.com/arendst/Tasmota/issues/12221

History

Wed, 09 Apr 2025 15:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-01-09T00:00:00.000Z

Updated: 2025-04-09T14:38:55.751Z

Reserved: 2021-07-12T00:00:00.000Z

Link: CVE-2021-36603

Vulnrichment

Updated: 2024-08-04T01:01:57.890Z

NVD

Status : Modified

Published: 2023-01-09T21:15:10.537

Modified: 2025-04-09T15:15:44.300

Link: CVE-2021-36603

Redhat

No data.

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:tasmota_project:tasmota:6.5.0:*:*:*:*:*:*:*", "matchCriteriaId": "A0D86B53-0AB3-4904-9A41-2A005680F075", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Cross Site Scripting (XSS) in Tasmota firmware 6.5.0 allows remote attackers to inject JavaScript code via a crafted string in the field \"Friendly Name 1\"."}, {"lang": "es", "value": "Cross Site Scripting (XSS) en el firmware Tasmota 6.5.0 permite a atacantes remotos inyectar c\u00f3digo JavaScript a trav\u00e9s de una cadena manipulada en el campo \"Friendly Name 1\"."}], "id": "CVE-2021-36603", "lastModified": "2025-04-09T15:15:44.300", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "[email protected]", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2023-01-09T21:15:10.537", "references": [{"source": "[email protected]", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://github.com/arendst/Tasmota/issues/12221"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://github.com/arendst/Tasmota/issues/12221"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "[email protected]", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-79"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}