{
    "CVE_data_meta": {
        "ASSIGNER": "vulnerabilitylab@whitesourcesoftware.com",
        "ID": "CVE-2021-25980",
        "STATE": "PUBLIC",
        "TITLE": "Talkyard - Host-Header Injection Leads to Account Takeover"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "talkyard",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": ">=",
                                            "version_name": "v0",
                                            "version_value": "v0.04.01"
                                        },
                                        {
                                            "version_affected": "<=",
                                            "version_name": "v0",
                                            "version_value": "v0.6.74-WIP-63220cb"
                                        },
                                        {
                                            "version_affected": ">=",
                                            "version_name": "v0.2020",
                                            "version_value": "v0.2020.22-WIP-b2e97fe0e"
                                        },
                                        {
                                            "version_affected": "<=",
                                            "version_name": "v0.2021",
                                            "version_value": "v0.2021.02-WIP-879ef3fe1"
                                        },
                                        {
                                            "version_affected": ">=",
                                            "version_name": "tyse-v0.2021",
                                            "version_value": "tyse-v0.2021.02-879ef3fe1-regular"
                                        },
                                        {
                                            "version_affected": "<=",
                                            "version_name": "tyse-v0.2021",
                                            "version_value": "tyse-v0.2021.28-af66b6905-regular"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "debiki"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In Talkyard, versions v0.04.01 through v0.6.74-WIP-63220cb, v0.2020.22-WIP-b2e97fe0e through v0.2021.02-WIP-879ef3fe1 and tyse-v0.2021.02-879ef3fe1-regular through tyse-v0.2021.28-af66b6905-regular, are vulnerable to Host Header Injection. By luring a victim application-user to click on a link, an unauthenticated attacker can use the \u201cforgot password\u201d functionality to reset the victim\u2019s password and successfully take over their account."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://github.com/debiki/talkyard/commit/4067e191a909ed06f250d09a40e43aa5edbb0289",
                "name": "https://github.com/debiki/talkyard/commit/4067e191a909ed06f250d09a40e43aa5edbb0289"
            },
            {
                "refsource": "MISC",
                "url": "https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25980",
                "name": "https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25980"
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "value": "Update to tyse-v0.2021.29-8cb7f73fe-regular or later"
        }
    ],
    "source": {
        "advisory": "https://www.whitesourcesoftware.com/vulnerability-database/",
        "discovery": "UNKNOWN"
    }
}