{
    "containers": {
        "cna": {
            "affected": [
                {
                    "product": "GS1900-8 Firmware",
                    "vendor": "Zyxel",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "2.60"
                        }
                    ]
                }
            ],
            "datePublic": "2021-07-27T00:00:00.000Z",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A vulnerability was found in the CGI program in Zyxel GS1900-8 firmware version V2.60, that did not properly sterilize packet contents and could allow an authenticated, local user to perform a cross-site scripting (XSS) attack via a crafted LLDP packet."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "ADJACENT_NETWORK",
                        "availabilityImpact": "LOW",
                        "baseScore": 3.5,
                        "baseSeverity": "LOW",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "HIGH",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L",
                        "version": "3.1"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-79",
                            "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "dateUpdated": "2021-07-26T11:20:40.000Z",
                "orgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
                "shortName": "Zyxel"
            },
            "references": [
                {
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://www.zyxel.com/support/Zyxel_security_advisory_for_XSS_vulnerability_of_GS1900_series_switches.shtml"
                }
            ],
            "x_legacyV4Record": {
                "CVE_data_meta": {
                    "ASSIGNER": "security@zyxel.com.tw",
                    "DATE_PUBLIC": "2021-07-27 10:00:00+0800",
                    "ID": "CVE-2021-35030",
                    "STATE": "PUBLIC"
                },
                "affects": {
                    "vendor": {
                        "vendor_data": [
                            {
                                "product": {
                                    "product_data": [
                                        {
                                            "product_name": "GS1900-8 Firmware",
                                            "version": {
                                                "version_data": [
                                                    {
                                                        "version_value": "2.60"
                                                    }
                                                ]
                                            }
                                        }
                                    ]
                                },
                                "vendor_name": "Zyxel"
                            }
                        ]
                    }
                },
                "data_format": "MITRE",
                "data_type": "CVE",
                "data_version": "4.0",
                "description": {
                    "description_data": [
                        {
                            "lang": "eng",
                            "value": "A vulnerability was found in the CGI program in Zyxel GS1900-8 firmware version V2.60, that did not properly sterilize packet contents and could allow an authenticated, local user to perform a cross-site scripting (XSS) attack via a crafted LLDP packet."
                        }
                    ]
                },
                "impact": {
                    "cvss": {
                        "baseScore": "3.5",
                        "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L",
                        "version": "3.1"
                    }
                },
                "problemtype": {
                    "problemtype_data": [
                        {
                            "description": [
                                {
                                    "lang": "eng",
                                    "value": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"
                                }
                            ]
                        }
                    ]
                },
                "references": {
                    "reference_data": [
                        {
                            "name": "https://www.zyxel.com/support/Zyxel_security_advisory_for_XSS_vulnerability_of_GS1900_series_switches.shtml",
                            "refsource": "MISC",
                            "url": "https://www.zyxel.com/support/Zyxel_security_advisory_for_XSS_vulnerability_of_GS1900_series_switches.shtml"
                        }
                    ]
                }
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T00:33:49.831Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://www.zyxel.com/support/Zyxel_security_advisory_for_XSS_vulnerability_of_GS1900_series_switches.shtml"
                    }
                ]
            }
        ]
    },
    "cveMetadata": {
        "assignerOrgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
        "assignerShortName": "Zyxel",
        "cveId": "CVE-2021-35030",
        "datePublished": "2021-07-26T11:20:40.191Z",
        "dateReserved": "2021-06-17T00:00:00.000Z",
        "dateUpdated": "2024-09-17T01:46:12.877Z",
        "state": "PUBLISHED"
    },
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1"
}